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19 Cards in this Set
- Front
- Back
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Metabolism
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The chemical processes that occur within a living organism in order to maintain life.
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Energy
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The strength and vitality required for sustained physical or mental activity
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Exergonic Reaction
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A chemical reaction where free energy is released.
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Catalyst
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A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
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Active Site
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A region on an enzyme that binds to a protein or other substance during a reaction.
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Coenzymes
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A nonprotein compound that is necessary for the functioning of an enzyme.
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Allosteric Site
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A site othe rthan a proteins active site where allosteric regulation occurs.
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Catabolic Pathways
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A metabolic pathway that releases energy by breaking down complex molecules to simpler compounds.
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Kinetic Energy
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The energy that an object possesses due to its motion.
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Endergonic Reaction
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A chemical reaction in which energy is absorbed.
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Activation Energy
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The minimum quantity of energy that a chemical reaction needs inorder for it to go to completion.
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Induced Fit
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The change in shape of the active site of an enzyme so that it binds more snugly to the substrate, induced by entry of the substrate.
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Competitive Inhibitors
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Bound to the active site on an enzyme to prevent binding of the subatrate and vice versa during competitive inhibition.
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Anabolic Pathways
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The set of metabolic pathways that construct molecules from smaller units. These reactions require energy.
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Potential Energy
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The energy that a non-moving object could use.
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ATP
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A nucleotide that occurs in muscle tissue; the major source of energy for cellular reactions.
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Substrate
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A molecule that binds with the active site of an enzyme.
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Cofactors
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A non-protein chemical compound whose presence is essential for the activity of an enzyme.
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Noncompetive Inhibitors
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Reversibly binds to an allosteric site on the enzyme preventing the substrate from being able to bind to the active site.
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