Quick 10Q: Enzymes

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What is an enzyme?

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A biological catalyst that speeds up chemical reactions in living organisms.

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What is the role of the active site in an enzyme?

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The active site is the region on the enzyme where substrate molecules bind and undergo a chemical reaction.

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What is a substrate?

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A substrate is the reactant molecule upon which an enzyme acts.

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What is denaturation of an enzyme?

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Denaturation is the process where an enzyme loses its functional shape due to external factors like temperature or pH.

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What factors can affect enzyme activity?

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Temperature, pH, substrate concentration, and the presence of inhibitors or activators.

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What is a noncompetitive inhibitor?

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A noncompetitive inhibitor is a substance that reduces enzyme activity by binding to an allosteric site, not the active site.

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What is the effect of high temperature on enzyme activity?

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High temperature can lead to denaturation of the enzyme, reducing its activity.

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What is the effect of low pH on enzyme activity?

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Low pH can denature enzymes, affecting their ability to catalyze reactions.

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What is the function of a coenzyme?

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A coenzyme is a non-protein molecule that assists enzymes in catalyzing reactions.

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What is the difference between competitive and noncompetitive inhibition?

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Competitive inhibitors bind to the active site, while noncompetitive inhibitors bind to an allosteric site.