One of numerous complex proteins which are produced by living cells and catalyze biochemical reactions at body temperatures.
en = in + zyme = leaven (an early use of biotechnology!).
A class of protein (catalyst) that is capable of accelerating or producing biochemical reactions by binding to and cleaving other proteins.
Substance, made by living cells, that causes specific chemical changes.
(èn¹zìm´), protein functioning as a biological CATALYST. Enzymes accelerate (often by several orders of magnitude) chemical reactions in the cell that would proceed imperceptibly or not at all in their absence. The enzyme is not permanently modified by its participation. Most enzymes demonstrate great specificity, reacting with only one or a small group of closely related chemical compounds; several enzymes are sometimes required for efficient catalytic function. Some enzymes depend on the presence of COENZYMES for their function. For the enzyme to continue to be effective, its three-dimensional molecular structure must be maintained. Over 1,500 different enzymes have been identified, and the exact sequence of AMINO ACIDS (subunits of a protein) has been determined for many through the technique of X-RAY CRYSTALLOGRAPHY. It is believed that an enzyme functions by attaching the molecule it acts on to a specific molecular site, so that the electrostatic forces of nearby atoms sharply reduce the energy needed to cleave and re-form the appropriate chemical bonds. 1 Exogenous
Protein catalyst which drives chemical reactions within a cell. Enzymes display a high degree of specificity with regard to both the substrate on which they act and the type of reaction they catalyze. Enzymes may also be introduced from outside the cell to cause biochemical reactions.
An organic catalyst produced by living cells but capable of acting independently. Enzymes are complex proteins capable of inducing chemical changes in other substances without being changed themselves.• Main Glossary• Previous Page
A protein in the body that functions to initiate a specific chemical reaction.
A complex protein with the ability to either break or form a chemical bond. Most of the enzymes brewers concern themselves with break bonds.
A protein functioning as a catalyst in living organisms, which promotes specific reactions or groups of reactions.
A biological macromolecule that acts as a catalyst. Most enzymes are proteins, but certain RNAs, called ribozymes, also have catalytic activity.
A protein or protein comples that brings the elements of a chemical reaction together in living organisms. ithout enzymes biochemical reactons would happen too slowly to sustain life. Enzymes speed up reactions by a factor of one thousand times or more. Enzymes are involved in digestion and metabolism. Plant enzymes when consumed aid in digestion. Allopathic medicine does not recognize that plant enzymes have a health promoting role when absorped into the boodstream. Nutritional medicine, however, views absorbed plant enzymes as having important roles in the body: fighting inflammation, enhancing immune system, detoxifying, and guarding against cancer by "digesting" cancer cell's outer coating. Plant enzymes are very fragile and are destroyed at temperatures greater than 118 degrees F and by microwaving and canning. For more information on the alternative medicine view of enzyme nutrition refer to the book The Enzyme Cure by Lita Lee, PhD.
Protein that is used by the body to convert a particular chemical into another chemical e.g., DNA repair enzymes convert damaged DNA into undamaged DNA.
A protein that acts as a catalyst. Chemical reactions in living organisms are facilitated by enzymes.
organic substance, protein by nature, of animal, vegetal or microbic origin which causes or accelerates a biochemical transformation.
Protein that facilitates or speeds up certain chemical reactions. Enzymes are used inside of cells to aid in cell growth and reproduction. Enzymes have also been isolated from organisms and used in products like cheese and laundry detergents.
Complex proteins that are produced by living cells and catalyze biochemical reactions at body temperatures without being destroyed.
( en-zime ): proteins that increase the rate of chemical reactions in living cells.
a protein produced by the body to speed up a specific chemical reaction in the body
A protein that helps a chemical reaction to take place. Enzymes are responsible for controlling and facilitating the chemical processes that allow cells to grow, develop and function.
The active component of rennet is an enzyme. An enzyme accelerates a reaction, in the case of rennet, the coagulating or setting of the milk.
a protein which is found inside cells. It speeds up chemical reactions. Enzymes usually work in highly specific ways.
Any of a myriad number of different proteins produced by cells, capable of accelerating biochemical reactions occurring within the cells
Protein capable of facilitating a chemical reaction
A substance produced from a gene that controls or regulates chemical reactions and hence controls the entire organism.
a protein capable of accelerating or producing chemical change in a specific substrate.
A protein that accelerates chemical reactions.
a protein that catalyzes a biochemical reaction. Most genes encode enzymatic proteins.
A macromolecule that functions as a biocatalyst by increasing the reaction rate, frequently containing or requiring one or more metal ions. In general, an enzyme catalyzes only one reaction type (reaction specificity) and operates on only a narrow range of substrates (substrate specificity). Substrate molecules are attacked at the same site (regiospecificity) and only one or preferentially one of the enantiomers of chiral substrate or of racemic mixtures is attacked (enantiospecificity).
A specialized class of proteins (generally) that allow or catalyze (speed up) reactions that might otherwise occur too slowly to be of physiological use, if at all.
Entsyymi Enzym Class of complex organic substances that accelerate or catalyze specific chemical reactions.
A protein that acts to regulate or catalyse a biochemical reaction, without being itself altered in the process.
Proteins produced by the cells that are crucial in chemical reactions and in building up or synthesizing most compounds in the body. Each enzyme has a specific function. The two classes of enzymes are metabolic and digestive. Metabolic enzymes catalyze the many chemical reactions in the body. Digestive enzymes are responsible for breaking down food into smaller absorbable units. There are specific enzymes that break down protein, fat and carbohydrate; these are protease, amylase and lipase respectively.
a protein capable of speeding up a chemical reaction by lowering the energy required to activate the reaction, but remains unchanged during the process.
A protein molecule that acts as a "helper" in thousands of chemical reactionsin the body, including: digestion of food, hormone production, muscle-cell repair, etc.
Chemical substance produced naturally in the body that catalyzes or promotes certain essential metabolic processes.
A protein that causes a chemical reaction to take place.
A protein molecule produced by living organisms able to catalyze, or facilitate, a specific chemical reaction involving other substances without itself being destroyed or changed in any way.
chemicals produced in body that help in many bodily processes.
chemical that helps to break down and digest food
substance that affects the speed of chemical changes; an organic catalyst, most often a protein
Chemicals (proteins) produced by the body that speed up biological reactions taking place within the body, without being used up themselves.
A type of protein that causes chemical reactions of other substances without undergoing change in the process.
A catalyst produced by an organism and used to speed up a specific kind of chemical reaction.
a protein which can catalyze (increase the rate of) a chemical reaction inside of the cell.
substance produced by living cells in the body that produces chemical changes in the body.
Are types of proteins that are used to facilitate and regulate chemical reactions within cells.
A protein catalyzing a chemical reaction. Biological processes are to a high degree driven by enzymatic reactions.
Proteins that change or break down unwanted ingredients, also see Pectic enzyme
an organic catalyst produced by living cells but capable of acting outside cells or even in vitro. Enzymes are proteins. See "catalyst."
1. a protein which makes possible or facilitates a chemical reaction under a given environmental condition. 2. a digestive enzyme, an enzyme secreted by the body which helps break down food substances into forms that can be absorbed and assimilated by the body.
any protein catalyst, i.e. substance which accelerates chemical reactions without itself being used up in the process. Many enzymes are specific to the substance on which they can act, called substrate. Enzymes are present in all living matters and are involved in all the metabolic processes upon which life depends.
A protein substance whose role is to speed up chemical reactions, without becoming used up in the reactions.
complex protein which helps to speed biochemical reactions. Enzymes are important in the construction and degradation of other molecules.
catalyst produced by living cells for a biochemical reaction.
highly active protein that catalyzes biochemical reactions within cells
Any protein or group of proteins produced by a living organism functioning as biochemical catalysts
a protein produced in a cell, capable of catalysing (greatly accelerating) the chemical reaction of a substance. The enzyme does this without being destroyed or altered.
Enzymes are a special class of proteins. Enzymes control chemical reactions, such as the breakdown of sugar for energy.
A protein that carries out the biochemical reactions essential for the body to metabolize food and produce energy for growth, repair, and movement. Organisms could not function if they had no enzymes.
protein product of a living cell that can cause or speed up a chemical reaction
protein molecule which promotes or enables a chemical reaction in the cells (a biochemical reaction) to take place. These biochemical reactions include breaking down food into the essential chemicals required by the body and breaking down toxic by-products of our bodies. Enzymes are essential for the correct function of the body's metabolism.
Molecule that speeds up a chemical reaction without being permanently altered or consumed.
protein that catalyses a specific biochemical reaction.
special proteins that catalyze chemical reactions, typically accelerating reactions by 108 to 1010.
An enzyme is a biological catalyst produced by cells to speed up the chemical reactions necessary for life. They are large complex proteins and are very specific, each chemical reaction requiring its own enzyme. The specificty of the enzyme is because of its active site, this is where a part of the sunstrate molecule slots together with the enzyme forming an enzyme/substrate complex. After the reaction takes place the enzyme is left unaltered.
Protein molecule that catalyzes a biochemical reaction.
A protein that catalyzes biochemical reactions. Substrates are bound and oriented within the active site of the enzyme in a manner that facilitates the formation of the transition state and the conversion to products.
A protein that promotes one or more types of chemical reaction in the body without itself being altered.
A protein that is designed to catalyze specific chemical reactions in living cells.
Proteins that catalyze biochemical reactions in an organism. Enzymes are necessary because they provide the activation energy, for chemical reactions that otherwise would occur very slowly. Enzymes are very important in systems biology. Interactions and modifications of molecules within the cell can lead to chain reactions and changes within the cell. See also Active Site, Systems Biology.
A protein that promotes the chemical processes occurring in living tissue without itself being altered or destroyed.
('en-"zIm) — A protein that speeds up the rate at which a biochemical reaction proceeds, but does not change the direction or nature of the reaction. Chymosin, defined above and used in the production of cheese, is an enzyme.
Proteins which act as biocatalysts or accelerators of metabolic processes.
a protein produced in cells, that speeds up the rate of biological reactions without itself being used up.
a protein that carries out chemical reactions
A biological molecule capable of carrying out chemical reactions.
Protein in the body that initiate and accelerate chemical reactions.
a substance that speeds up a chemical reaction.
A cellular protein whose shape allows it to hold together several other molecules in close proximity to each other. In this way, enzymes catalyze chemical reactions of other substances with little expenditure of energy and without being changed themselves.
A protein that increases the rate of a biochemical reaction.
protein or RNA molecule that facilitates or accelerates certain chemical reactions in biological systems.
A protein that helps the body perform specific functions, including breaking down drugs.
A protein capable of catalyzing a biochemical reaction.
biological catalyst; protein that assists in a biological reaction without being used up in the reaction itself
Organic catalyst produced by living cells that changes the rate of a reaction without being used up in the reaction
a protein that is needed by the body for a chemical reaction to occur
Proteins that accelerate the rate of a specific chemical reaction without themselves being altered. Enzymes are generally named by adding the suffix "-ase" to the name of the substance on which the enzyme acts (for example, protease is an enzyme that acts on proteins).
Protein acting as a catalyst in a biochemical reaction
any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
a biological catalyst that is not itself destroyed in the conversion process
a biological catalyst, which is used to facilitate and speed up reactions
a catalyst-a protein that speeds up chemical reactions within the body
a catalyst for biochemical reactions that occur in the body
a catalyst that does not enter into a reaction but speeds up or causes a reaction to take place
a catalyst that is required for many actions in your body
a catalyst that promotes chemical reactions without being destroyed or changed by those reactions
a catalyst, which is a chemical agent that changes the rate of a reaction without being consumed by the reaction
a catalyst, which makes something work more efficiently
a catalytic protein that allows reactions to occur at much higher rates
a chemical catalyst that breaks up long, complex waste molecules into smaller ones
a chemical compound that helps steer metabolic processes in the body
a chemical or protein that is able to speed up a specific chemical reaction
a chemical substance in your body that causes a chemical reaction to happen
a chemical which speeds up chemical reactions without being changed itself
a complex proteinaceous substance (many are produced by living cells) that can bring about or accelerate reactions often needed for metabolism
a complex that speeds or catalyzes a reaction without actually being affected by the reaction itself
a compound which brings about one particular chemical reaction but itself remains unchanged at the end of the reaction
a functioning mechanism, not a chemical
a globular protein, which, in its tertiary structure forms a spherical, ball shaped compact complex
a huge protein that speeds up chemical reactions
a large, complex molecule that has the ability to chemically change other large, complex molecules without being changed itself
a large protein the does work in biology, and is made of the same amino acids as other proteins
a macromolecule that catalyzes, or speeds up, a chemical reaction
a molecule cfs shopit that converts one chemical into another
an example of a catalyst, a substance that speeds up a reaction without participating in it either as a reactant or product
an organic catalyst produced by living things
an organic catalyst, usually a protein
a protein chain with a metal termination
a protein made by living cells that aid in catabolic and metabolic reactions in the body
a protein, or assemblage of protein molecules, that catalyze chemical reactions in living organisms
a protein produced by the cell that facilitates chemical reactions in the body without being permanently changed itself
a protein produced in a cell and aids a specific chemical reaction to take place
a protein that accelerates a biochemical reaction
a protein that acts as jig, holding molecules in positions that massively favor a particular chemical reaction
a protein that catalyzes, or speeds up, a chemical
a protein that causes chemical changes in other substances
a protein that causes something to happen in the body
a protein that controls the chemical reactions that take place in the body
a protein that enables the body to produce chemical reactions to take place
a protein that has a specific action in a chemical or biochemical reaction
a protein that is developed by the body to increase a certain chemical reaction in the body
a protein that works like a tool
a protein which catalyzes, or speeds up, and controls natural chemical reactions
a protein which initiates chemical reactions in the body, necessary to almost all bodily functions
a protein which is capable of catalysing a reaction
a protein, which is digested
a protein which serve as catalysts for many biochemical processes
a something that can speed or slow a reaction based on ph or temperature, and can increase the rate of a reaction based on concentration
a specialized protein structure which carries with it an electromagnetic or energetic charge
a special kind of protein that accelerates a chemical reaction
a special kind of protein that can accelerate chemical reaction while retaining its own structure
a specially folded protein that can speed up a chemical reaction
a specific biological catalyst
a substance produced by a living organism which speeds up a specific chemical reaction
a substance similar to a protein that allows the digest to distributed throughout the entire body
a substance that acts as a catalyst to produce chemical changes without being changed itself
a substance that speeds up the reaction
a substance that triggers chemical reactions in the body
a substance which allows a biological reaction to take place
a typically complex molecule that receives another molecule and structurally manipulates it to create a third molecule
Proteins that control the speed of chemical reactions that take place in living things.
a cellular substance which facilitates a specific chemical reaction. When an enzyme is missing or in decreased quantity, the specific reaction plus all those that occur subsequently (as part of a chain of reactions) will not occur correctly or at all and therefore subsequent physiologic problems will arise
a protein that speeds up chemical reactions in living organisms. Enzymes lower the energy necessary to turn a set of reactants into other products. Without enzymes, we could not exist.
Proteinaceous molecule that acts as a catalyst, controlling the rate of a specific chemical reaction. A large array of different enzymes provides the metabolic web that allows the processing and interconversion of diverse molecules within the body.
Proteins that speed up -- or catalyze -- the rate of chemical reactions that are essential for cells to function and survive.
A molecule that acts as a catalyst, speeding up biochemical reactions.
A substance needed for a chemical reaction to occur.
Proteins produced by cells in the body and assists the body’s processes.
a protein capable of speeding up specific chemical reactions by lowering the energy required to activate or start the reaction but remains unaltered in the process.
A protein that is formed to start a chemical reaction
A biological catalyst that acts to speed up chemical reactions. Digestive enzymes are necessary for the breakdown of proteins, carbohydrates and fats ie.pepsin.
Large molecule (protein) which is formed in the living cell and which expedites biochemical reactions.
Protein that catalyses biological reactions, eg reverse transcriptase.
A biological compound that helps the body to process chemicals. Some enzymes are responsible for digesting protein in food. Other enzymes found in the liver are responsible for getting rid of contaminants.
A substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process.
A naturally occurring chemical substance in the body that helps a chemical reaction to occur.
Enzymes are a type of catalyst, which means they speed up chemical reactions. In the case of digestive enzymes, they speed up the digestion or breaking down of food into nutritional components such as fatty acids, amino acids, sugars, vitamins and minerals. When the organs which produce digestive enzymes are not producing sufficient quantities, a supplemental form of digestive enzymes may be needed for proper digestion to occur. Some metabolic disorders involve the lack of a certain enzyme needed for processing or metabolizing certain specific food components.
Any of a group of complex proteins produced by living cells that act as catalysts in specific biochemical reactions.
Catalytic protein (see "Protein")
organic catalyst produced by living cells of the body; enzymes stimulate or accelerate biochemical reactions at the body’s normal temperature.
protein that acts as a catalyst, affecting the rate at which a chemical reaction occurs within a cell, without being changed or used up in the reaction.
a substance produced by the body to do a chemical job of work (this can be measured with liver function tests)
a protein that helps biological reactions occur; for example, enzymes help the body convert food into energy.
Protein made by the body that brings about a chemical reaction, for example, the enzymes produced by the gut to aid digestion.
The traditional definition of enzymes is that they are catalysts made out of protein. However, in recent years biologists have learned that RNA may also have catalytic activity. These RNA catalysts are called ribozymes. However, some biologists feel that enzymes should be defined to include ribozymes so that this modern definition of enzymes is: protein or RNA that acts as a catalyst.
protein which catalyses a biochemical reaction
A protein that speeds up certain chemical processes. In the intestine, enzymes are needed to break down many foods into simpler substances so that they can be absorbed.
A naturally occuring protein that fascilitates a specific biochemical reaction; a biological catayst.
A biochemical catalyst made up primarily of protein.
Catalysts of biological systems. Nearly all known enzymes are proteins. They are used to catalyse many chemical reactions and importantly are specific.
a large molecule, usually a protein, that catalyzes biological reactions.
Chemicals produced by bacteria that break down other chemical compounds into the most basic components.
A protein that speeds up chemical reactions and breaks down food stuffs to simple substances which the body can absorb (see Digestion).
A specialised type of protein that controls chemical reactions in the body. They are very important; their activities range from controlling the breakdown of food in the gut to helping to send important messages to the inside of cells.
Substances made by the body which help changes happen. Example: pepsin, which helps digest protein in the stomach.
A specialized protein that aids a reaction in the body.
Any of a vast number of biochemicals (usually proteins) produced by living organisms to use in transforming a specific compound. The enzyme serves as a catalyst in the compound's biochemical transformation.
Protein produced by a living cell that enables the body to carry out necessary chemical reactions.
A protein that facilitates a biochemical reaction. Many essential reactions in the body require the help of enzymes and would not proceed on their own.
A protein capable of producing certain chemical changes.
a complex organic substance capable of speeding up biochemical processes in the body
Protein produced by living organisms that acts as a catalyst for a specific biochemical (metabolic) reaction.
A special chemical substance (protein) that breaks down large molecules into smaller molecules, aiding digestion
A special chemical found in cells that can help a chemical reaction to happen inside or outside the cell.
protein that acts by catalysing biochemical reactions. Enzymes are necessary for the normal functioning of cell metabolism.
proteins in living cells that produce chemical changes
A substance that speeds up chemical reaction. Every chemical reaction in living organisms is facilitated by an enzyme.
A protein that encourages biochemical reactions. Missing or abnormal enzymes can result in diseases and abnormalities.
A molecule that facilitates reactions between two other molecules, but which itself is not altered or taken up in the overall reaction.
A kind of biological molecule that facilitates certain chemical reactions inside the body. The human body contains many thousands of different enzymes, which are involved in virtually every aspect of the bodyâ€(tm)s functions. People with PKU lack a certain enzyme called phenylalanine hydroxylase (PAH).
An organic catalyst that is capable of inducing chemical changes in other substances without being changed themselves. They are complex proteins. Most enzymes have the suffix -ase added to the name or part of the name of the substance on which it acts. There are many different enzymes.
A catalyst that is produced by living cells to allow chemical reactions to take place in cells. Enzymes catalyze only specific types of chemical reactions, and only act on specific substances.
A protein which changes or affects other proteins. For example, an human enzyme named furin cuts specific proteins into two pieces.
Proteins that control the speed of chemical reactions in the body - for example, digestive enzymes break down food in the gut.
A substance that acts as a catalyst in living organisms. It can control the rate of a chemical reaction. The enzyme itself is not changed by the chemical reaction. Luciferase is an enzyme.
Special kind of protein that allow reactions to occur at faster speeds than normal or under less extreme conditions.
A biological molecule, usually a protein, which catalyses (activates) chemical reactions.
A protein which speeds up, or control, chemical reactions in living organisms without being used up during the reaction.
Enzymes are proteins whose form and physico-chemical properties make it possible to bind certain substances (substrates) for a short time. They promote (catalyze) very specific reactions of these substrates (decomposition, conversion or adsorption) which would otherwise require the input of energy or take a long time. _Top of page
A protein in cells that stimulates chemical reactions in the body.
One of a group of protein catalysts that initiate or speed chemical reactions in the body.
A biological molecule (in most cases, a protein) that acts as a specific chemical catalyst. Bacteria growing in milk need to use the milk proteins as a source of essential amino acids, and must break down the milk proteins into smaller pieces (this is 'proteolysis'). In Cheddar cheese, the starter (usually Lactococcus lactis bacteria) plays a major role in determining the flavour profile of the cheese. These bacteria have a complex enzyme system for breaking down milk proteins, using enzymes known as proteinases (or 'proteases') and peptidases. In general terms, proteinases break proteins into large fragments (peptides) while peptidases break down those peptides into smaller peptides and amino acids. Small peptides and amino acids can be involved in further reactions that result in cheese aroma compounds. Enzymes involved in the metabolism of amino acids (enzymes from starters and non-starter bacteria that are found in cheese) are believed to be very important in the development of desirable flavours and aromas.
Catalytic organic substance of animal or vegetable origin, not composed of living cells but capable of causing fermentation or other chemical changes in organic matter. Rubber latex is stated to contain a coagulating enzyme. When the latex is allowed to stand, this enzyme or bacteria, or both, causes the formation of acid substances that bring about coagulation.
A protein that acts as a catalyst for chemical reactions.
Molecule of protein that makes chemical reactions work better and is not used.
Any of a number of protein chemicals that can change other chemicals.
A special protein that acts as a promoter during chemical reactions in the body.
A protein that acts to promote or facilitate certain biochemical processes in the body; e.g. many enzymes produced in the gut assist in digestion of food.
a protein capable of catalyzing a chemical reaction necessary of the cell
Specialized proteins that act as catalysts for virtually all necessary chemical reactions that take place within the body. Like all catalysts, enzymes unchanged by the reactions they promote, and will initiate many reactions until they are degraded (usually by another enzyme).
A protein in food that starts a chemical reaction, such as ripening.
A catalyst accelerating chemical reaction.
One of many complex proteins that are prduced by living cells and bring about (catalyze) specific biochemical reactions in the body.
A protein that facilitates a specific chemical reaction by working as a catalyst.
A biological catalyst that will increase the rate of a chemical reaction, but is not consumed in the course of a reaction.These catalysts are at least hundreds of times more efficient than any man-made catalyst used in industrial processes.
A protein with a catalytic function (i.e., one that accelerates a chemical reaction reaching equilibrium).
Protein that acts as specific catalyst, controlling the rate of reactions.
A protein in the body that triggers the body's metabolism.
A protein that acts as a catalyst, speeding the rate at which a biochemical reaction process but not altering the direction or nature of the reaction.
A protein molecule in a plant or animal that causes specific biochemical reactions in every stage of metabolism. For example, certain enzymes aid in digestion.
A complex protein substance found in all living cells, including your heart muscle cells. Enzymes are released into the bloodstream by damaged muscle.
In the body, any protein that speeds up the rate of a chemical reaction.
A chemical produced within the body which degrades or changes substances or increases the rate of a given reaction.
Chemicals produced by living cells. there are any different types of enzymes. Some assist in the digestion of food, some are responsible for the ripening or rotting of food.
An enzyme is a protein which catalyzes a specific reaction necessary for the maintenance of life. Page Top
proteins produced within the human body, functioning as biochemical catalysts.
a complex protein produced by living cells that promotes a specific biochemical reaction by acting as a catalyst.
A protein produced in living cells that catalyses (speeds up) chemical reactions is called an enzyme. Enzymes are often used for laboratory processes that investigate cell processes. A huge range can now be bought from scientific suppliers.
a protein produced by cells to accelerate a specific chemical reaction without itself being altered. Enzymes are generally named by adding the ending "-ase" to the name of the substance on which the enzyme acts (for example, protease is an enzyme that acts on proteins).
A protein secreted by the body that acts as a catalyst in promoting chemical change.
a protein produced by living cells that regulates the speed of the chemical reactions involved in the metabolism of living organisms, without itself being altered in the process; also called a biological catalyst
A protein that acts as a catalyst for biological, or metabolic processes.
A protein that serves as a biological catalyst; that is, it speeds up a rate of a biochemical reaction without being used up in the process.
A protein produced in a living organism that acts as a catalyst for a chemical process
Any protein that affects the rate at which a biochemical reaction is carried out
A protein functioning as a catalyst, speeding up the rate of biochemical reactions.
A kind of protein that facilitates chemical changes inside cells.3 Enzymes act like catalysts.
A substance that in small amounts increases the rate of a specific biochemical reaction is called the enzyme. Enzymes are usually required for the normal metabolism, or breakdown, of substances in the body.
A complex protein that has the ability to form or break a particular chemical bond.
Proteins that catalyze certain chemical processes in living cells.
a protein that accelerates a specific chemical reaction without altering itself.
A complex protein produced by living organisms that catalyzes biochemical reactions. A functional amino acid.
A protein that acts as a catalyst. Every chemical reaction in living organisms is facilitated by an enzyme.
A protien able to initiate or accelerate a chemical reaction.
A protein or protein-based molecule that speeds up chemical reactions occurring in living things. Enzymes act as catalysts for a single reaction, converting a specific set of reactants into specific products.
A protein catalyst that facilitates specific chemical or metabolic reactions necessary for cell growth and reproduction.
any of numerous proteins produced by organisms that work as a biochemical catalyst (speed a chemical reaction).
An enzyme is any one of a number of proteins or conjugated proteins produced by living organisms and functional as biochemical catalysts.
A protein that catalyzes a chemical reaction.
A protein that catalyses a specific reaction. Almost all chemical reactions occurring in uni- and multicellular organisms are catalyzed by enzymes.
a protein that helps control chemical reactions
A class of proteins that are capable of catalyzing chemical reactions (the making or breaking of chemical bonds). They do so by orienting their substrates into a suitable geometry in a particular location (the active site) where electrophilic or nucleophilic amino acid residues can participate in the reaction. Enzymes are protein catalyst that speeds up chemical reactions that would otherwise be prohibitively slow under physiological conditions.
a protein utilized in chemical reactions
a protein responsible for catalyzing a specific chemical reaction.
A protein that speeds up chemical reactions in the body. Any group of chemical substances which are produced by living cells and which cause particular chemical reactions to happen while not being changed themselves. E.g., an enzyme in the saliva of the mouth starts the process of breaking down the food.
a protein that functions as a catalyst, to speed up a chemical-specific reaction.
a protein which speeds up (catalyzes) a chemical reaction, accelerating the rate of conversion of a substrate molecule into the desired product. Most enzymes are proteins but a few are made from RNA.
a protein that acts as a catalyst in starting or speeding up a biochemical reaction within a cell.
Enzymes are proteins that control chemical reactions in the body without being changed by them. For example, the enzymes produced by the digestive system help food to be broken down so it can be absorbed.
A protein that catalyzes a biochemical reaction, usually speeding it up. Enzymes are vital components of any living organism.
Proteins produced by cells to speed up specific biochemical reactions.
a protein that acts as a biological catalyst. Enzymes are necessary to produce chemical reactions within a cell.
A chemical compound your body makes from various combinations of proteins, vitamins, and minerals. Enzymes speed up the chemical reactions in your body.
biomolecule (usually a protein) produced by living organisms and functioning as biochemical catalysts.
Protein that helps other chemical reactions in the body proceed.
(en´ zime) [Gr. en: in + zyme: yeast] • A protein, on the surface of which are chemical groups so arranged as to make the enzyme a catalyst for a chemical reaction.
A protein that acts as a catalyst in accelerating specific chemical reactions. For example, digestive enzymes break down food into materials useful to the body.
One of many specific protein catalysts that initiate or speed chemical reactions in the body without being consumed.
A protein that acts as a catalyst by speeding up chemical reactions. The human body uses more than 1,000 different enzymes.
A substance produced by the body to break down food into component nutrients, a form that can then be absorbed by the body.
substance that acts as a catalyst in metabolism
Proteins that serve as catalysts for biochemical reactions within the brain
a substance that speeds up chemical reactions, without itself being used up.
Proteins that help to improve biological processes
A protein that catalyses chemical reactions in a living cell. Enzymes are protein molecules whose function it is to speed the making and breaking of chemical bonds required for essential physiochemical reactions.
Proteins accelerating and performing chemical reactions under physiological conditions. Enzymes are not modified in the course of reaction; they are also called biocatalysts.
A protein molecule that acts as a “helper” in thousands of chemical reactions in the body.
special type of protein. Enzymes help the body's chemistry work better and more quickly
A protein which acts as a catalyst in promoting one or more of the many chemical reactions in the body. Enzymes in saliva help dissolve cooked starches into sugars so that they become soluble and can clear from the mouth.
A protein that triggers or "catalyzes" a biochemical reaction.
A complex protein produced by the cells to act as a catalyst in regulating metabolic activities.
a protein produced by living cells and functioning as a catalyst in a specific biochemical reaction.
a protein involved in an important biochemical reaction in the body; a defective enzyme can be the result of a mutated gene
A protein that catalyzes or speeds up chemical reactions
A protein (or RNA molecule), which speeds up the rate of a reaction (see catalyst).
A protein that acts as a catalyst in mediating and speeding a specific chemical reaction.
A protein secreted by the body which acts as a catalyst by promoting or accelerating a chemical change in other substances while remaining unchanged in the process.
A molecule naturally produced by living cells that aids in the chemical alteration of organic substances.
proteins produced to be catalysts in biochemical reactions
A protein produced by living cells that catalyze chemical reaction in organic matter.
Any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions.
Proteins that speed up or allow a chemical reaction in the body to take place.
A protein produced by living cells that can catalyze a specific organic reaction. ()
A complex organic agent that enhances cellular reaction rates without being altered in the process.
A protein catalyst produced within a living organism that accelerates a specific chemical reaction.
A protein produced by certain cells, which speeds up chemical reactions in the body.
A very large class of protein substances that are produced by livings cells and are essential to life by acting as a catalyst in metabolism. In the pool and spa industry they are used to digest or eliminate oils, soap scum and other organic matter from the water and from filters.
A protein molecule capable of catalyzing (promoting) certain chemical reactions.
Protein molecules produced within an organism that are used as catalysts for biochemical reactions.
A protein which acts as a catalyst in biological systems.
A complex protein made by a cell which is a catalyst (something that starts a reaction or chain of events) for a specific biochemical reaction which does not change the enzyme. Enzymes control digestion, muscle contraction, and many other functions of metabolism.
A protein that acts as a catalyst to mediate and speed a specific chemical reaction.
Helpful protein molecules, responsible for a multitude of chemical reactions within the body.
a protein that acts to induce chemical changes in other substances, while it remains apparently unchanged by the process Back to previous page
A chemical substance produced by living cells that causes chemical reactions to take place while not being changed itself.
Organic substance, that speeds up chemical changes in foods.
A protein, produced by living cells, that promotes the chemical processes of life without itself being altered.
a protein that induces or accelerates a chemical reaction.
A protein that helps make a specific chemical reaction occur.
A type of protein that promotes essential functions involved in cell growth and metabolism. It works by catalyzing, or promoting, the making or breaking of chemical bonds, converting one molecule - the substrate - into another, the product. The enzyme itself is not destroyed or altered upon completion of the reaction.
a protein that facilitates a biochemical reaction in a cell. In general, these biochemical reactions would not occur if the enzyme is not present. For example, an enzyme can facilitate (also called "catalyze") the destruction of another protein by breaking the bonds between amino acids. An enzyme of that type is called a protease.
Protein that can perform various molecular catalytic or mechanical functions.
A protein charged with all biological reactions, i.e. the manufacture, synthesis, modification and degradation of molecules in cells in living matter.
a type of protein produced by your body that acts as a catalyst.
A protein that speeds up a chemical reaction or causes a chemical change in another substance. Enzymes do their work without being changed or used in the process.
A protein that catalyzes changes in other biological substances. Too many white cells are produced in CML because of an abnormal tyrosine kinase enzyme whose sole activity is sticking phosphate molecules onto tyrosine molecules.
which provide the structural components of cells and tissues as well as enzymes for essential biochemical reactions. (IOOakRidge) Enzima Em 1990, pela primeira vez, a terapia genética foi usada para curar uma criança cujo sistema imunológico era prejudicado pela falta de uma enzima. (POPrGenoma)
A protein that catalyses (or speeds up) chemical reactions of other substances without itself being destroyed or altered.
Any of the numerous proteins or conjugated proteins produced by living organisms that function as biochemical catalysts within the organism's body. Some RNA enzymes were recently discovered (see ribozyme).
Chemical compounds that act as catalysts, increasing the rate at which reactions take place in a living organism.
An organic compound, frequently a protein, capable of accelerating or producing by catalytic action some change in an organic substance for which it is often specific. An activating enzyme activates a given amino acid by attaching it to the corresponding transfer ribonucleic acid.
A protein that speeds up the rate at which chemical reactions take place in the body.
A protein (or protein-based molecule) that speeds up a chemical reaction in a living organism. An enzyme acts as catalyst for specific chemical reactions , converting a specific set of reactants (called substrates) into specific products. Without enzymes, life as we know it would not exist. See the entire definition of Enzyme
Any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts.
a highly specialised compound (protein) that is responsible for converting one substance (molecule) into another
a protein or other molecule that acts as a catalyst for a biological reaction
A protein material that speeds up chemical reactions in the bodies of plants and animals.
a protein that produces or assists in creating change in substances; a catalyst.
Protein chemical that accelerates a chemical reaction in the body without being consumed in the process.
A protein, synthesized by a cell, that acts as a catalyst in a specific chemical reaction.
An enzyme is one of a group of complex chemical substances produced by living organisms [e.g. bacteria, fungi] which promote and catalyse highly specific chemical reactions. The scission of glucosidic chemical bonds in starch by amylase enzymes is an example.
A protein molecule that causes a chemical reaction between two substances and which remains apparently unchanged in the process. Enzymes are produced by living substances. There are six main groups of enzymes. The group we are interested in is that of the isomerases, of which a subgroup known as proteases and lypases break down protein and oil into their basic components. These enzymes are sensitive to pH changes, and chemical reactions.
A protein molecule that catalyzes biochemical reactions in living systems, including those found in metabolic pathways. As a catalyst, an enzyme facilitates reactions without being consumed by them. Examples include the stomach enzyme pepsin, which digests food, and cellulase, which digests the polymeric sugar cellulose into smaller units.
A protein that helps other chemical reactions occur, but isn't itself affected in the reaction
Protein produced by living cells which catalyze biochemical reactions
A protein molecule that is a catalyst for chemical reactions of other substances and which is unaltered when reactions are complete. Enzymes are divided into six main groups.
is a protein that encourages a biochemical reaction, usually speeding it up. Organisms could not function if they had no enzymes.
a chemical (protein) produced by a cell to act as a catalyst in a particular biochemical reaction
Any complex protein which induces or speeds up a biochemical reaction without being changed in the process.
A chemical that assists in a chemical reaction without itself being changed.
A protein that speeds up chemical processes and reactions in the body.
A protein that speeds the rate at which a chemical reaction occurs in a cell. An enzyme acts as a catalyst.
A protein that acts as a catalyst in biological systems.
A protein that acts as a catalyst which speeds up, enables, or controls chemical reactions in living organisms. Enzymes change the rate of the reactions without being used up in the reaction. Enzyme function is highly dependent on environmental characteristics such as temperature and pH.
a substance that affects the speed of chemical reactions (catalyst).
a naturally occurring substance able to catalyse a chemical reaction.
A type of protein that controls the rate of a biochemical reaction.
a catalytic protein that performs chemical modification of a substrate that binds to its active site.
Naturally occurring chemical substances in the human body that help chemical reactions take place.
Catalysts that break down complex food molecules to utilize extracted energy.
A protein molecule that increases the speed (catalyzes) of chemical reactions of other substances without itself being destroyed or altered in the process.
An enzyme is usually a protein that, in small amounts, speeds up the rate of a biological reaction without itself being used up in the reaction (i.e., it acts as a catalyst). For example, enzymes present in the digestive juices of the stomach break down food into simpler compounds to be absorbed into the body.
A protein substance found in living cells that brings about chemical changes; necessary for digestion of food.
Any various complex organic substance originating from living micro-organisms, and capable of producing certain chemical changes in organic substances by catalytic action. Enzymes are the chemical catalysts of living cells.
A protein that triggers chemical reactions.
A protein produced by living cells that causes specific biochemical reactions at body temperatures.
any protein that regulates chemical changes in other substances
A protein that initiates or speeds up a particular biochemical reaction between specific molecules.
An enzyme acts as a catalyst for a biological reaction, such as digestive enzymes facilitating the breakdown of food in digestion.
a biological catalyst. That is, a substance that increases the speed of a chemical reaction without being changed in the overall process. Enzymes are vitally important to the regulation of the chemistry of cells and organisms.
A protein that catalyzes a specific biochemical reaction.
A molecule that induces the conversion of chemical substance to another.
A protein substance that acts as a catalyst in biochemical reactions.
A large molecule that living organisms use to catalyze chemical reactions. Enzymes are used to build, modify, or break down different molecules without themselves being permanently altered or destroyed.
A protein made in the body and capable of changing a substance from one form to another.
A protein that regulates a biochemical reaction.
A protein found in cells and secretions that acts as a catalyst, greatly promoting a chemical transformation for a special purpose. Enzymes are important in every aspect of biology, including the production (and destruction) of hormones.
A protein that acts as a catalyst to induce chemical changes in other substances.
A protein that catalyses a chemical reaction
protein that acts to catalyze (enable or speed up) a chemical reaction.
A protein molecule whose function is to catalyze (accelerate) a biological chemical reaction.
A class of protein compounds produced by a living organism and which act as catalysts capable of accelerating or producing biochemical changes.
A chemical that speeds up or makes a particular chemical reaction more efficient. In the digestive system, enzymes are involved in breaking down large food molecules into smaller molecules that can be processed and utilized by the body.
A protein that facilitates a specific chemical reaction without changing its direction or nature.
a protein molecule that facilitates biochemical reactions.
A protein (or, in some cases, an RNA molecule) that act as a catalyst, speeding up the rate at which a biochemical reaction proceeds.
A protein which catalyzes (or speeds the rate of reaction for) biochemical processes, but which does not alter the nature or direction of the reaction.
A substance found in a living cell that is capable of producing certain chemical changes.
a complex protein in the body that serves as a catalyst facilitating reactions between various substances without being changed itself.
protein catalysing a specific biochemical reaction.
Enzyme refers to a protein that is produced in a cell and acts as a catalyst in a specific cellular reaction.
Protein creating chemical reactions.
A protein that catalyzes a biochemical reaction or change without changing its own structure or function.
Enzymes are proteins that serve as a catalyst for biochemical processes.Enzymes bind temporarily to one or more of the reactants in the reaction they catalyze. In binding to one of the reactants, they lower the amount of activation energy needed for the reaction, and thus speed up the process.
An enzyme is a complex protein. It causes a chemical change in another substance, but is not changed in the process. Enzymes change proteins, starches, sugar into things that your body can digest. Return to previous page.
is a complex polymer of biological origin (usually a protein) that acts as a catalyst in one or more chemical reactions. A catalyst is any substance that increases the rate of a chemical reaction without itself being changed by the reaction.
protein capable of generating or accelerating change in another substance. Enzymes aid in digesting food.
A complex chemical capable of speeding up specific biochemical processes in the body.
Protein that helps make chemical reactions happen in cells. Organisms generally have thousands of different enzymes, each one involved in one or just a few reactions (p.168).
Enzymes of the proteinic molecules occure in various reactions. They are biocatalysts, i.e. proteins allowing to increase the speed of a chemical reaction, at temperature compatible with the biological life (37° C). One of their properties is the specifity of action and reaction : each enzyme can be fixed only on one type of substrate (a molecule) and can catalyse only one chemical reaction. Once the catalysis is finished, the enzyme can enter in reaction again...
A protein that catalyses chemical reactions of other substances without itself being destroyed or altered upon completion of the reactions.
A cellular protein whose shape allows it to interact in close proximity with one or several specific molecules. Enzymes in this way are able to induce, or catalyze, chemical reactions in other substances with little expenditure of energy and without being changed themselves.
protein that can speed up a specific chemical reaction without being changed or consumed in the process.
A protein produced by living organisms that promotes or otherwise influences chemical reactions.
A protein whose function is that of a catalyst, e.g. lytic and lysosomal enzymes damage cell membrances and degrade cell debris, respectively.
An enzyme is a protein which is a catalyst for some chemical reaction.
A highly specialised cellular protein that reduces the amount of energy required to initiate a chemical reaction, thereby increasing the speed of the reaction
A class of proteins that speed up chemical reactions in the body.
Small particles that aid the breakdown of large molecules into smaller ones. There are enzymes in all body cells and they are vital to all tissues and systems, especially the digestive system.
Molecules produced by living organisms that help catalyze biochemical reactions. Enzymes are predominantly protein or protein-based molecules and are highly specific in their mechanism of action as well as the reactants that they work upon (called substrates).
Protein chemicals that serve as catalysts for specific functions in the body, such as digestion, without being consumed in the process.
Protein catalyst that causes chemical reactions in the cell, producing compounds necessary for the cells growth and survival.
A chemically active type of protein that speeds up, or in practical terms enables, chemical reactions in living things.
a cellular protein whose shape allows it to hold together several other molecules in close proximity to each other. Enzymes in this way are able to induce chemical reactions in other substances with little expenditure of energy and without being changed itself.
A substance that affects the rate at which chemical changes take place in the body.
(natural catalyst) : Any of numerous proteins and protein-nonprotein compounds that living cells produce and that can initiate, or affect the speed of, specific chemical reactions.
A protein that encourages a biochemical reaction, usually speeding it up. Organisms could not function if they didn't have enzymes. [ Talking Glossary
A protein that speeds up chemical reactions in the cell.
Enzymes are proteins that speed-up and control chemical reactions, such as digestion, in the body.
Special protein that controls processes in an organism.
A molecule causing specific biochemical reactions in the body.
A protein produced by cells that influences the speed of a specific chemical reaction without being used up or permanently changed in the process. Enzymes are catalysts.
A class of protein (catalyst) produced by a living organism that is capable of accelerating or producing biochemical changes.
a protein that speeds up chemical reactions in the body without itself being permanently altered
A protein that acts as a catalyst, increasing the rate at which chemical change occurs in the body.
A protein that acts as a catalyst. Most chemical processes in living cells are enzyme catalysed.
Enzymes are proteins that catalyze (i.e. accelerate) chemical reactions. In these reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts them into different molecules, the products. Almost all processes in the cell need enzymes in order to occur at significant rates.