Bio Chapter 8

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Cartes-fiches	26
Langue	English
Catégorie	Biologie
Niveau	Université
Crée / Actualisé	02.09.2014 / 03.09.2014
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Substrate

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The reactant an enzyme acts on

Enzyme-Substrate Complex

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The enzyme plus the substrate bonded together

Active site

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The restricted region of the enzyme that binds to the substrate.

Induced Fit

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The process of an enzyme slightly altering its shape to form closer to the substrate

Cofactor

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Non protein helper for catalytic activity

Competitive Inhibitors

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Resemble the normal substrate and compete with the substrate for admission to the active site

Non-competitive inhibitors

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Bind to the enzyme somewhere other than the active site, which alters the enzyme's shape, slowing enzymatic reactions

Allosteric Regulation

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when a protein's function at one site is effected by the binding of a regulatory molecule at another

Cooperactivity

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A substrate molecule binding to the active site in a multisubunit enzyme triggers a shape change in all subunits that increases the catalytic activity

Feedback Inhibition

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A system where a metabolic pathway is switched off by the inhibitory binding of its end product to an enzyme that acts early in the pathway

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