Enzymes

Front

What are enzymes?

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Enzymes are biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy required for the reaction.

Front

How do enzymes speed up chemical reactions?

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Enzymes speed up chemical reactions by lowering the activation energy needed for the reaction to occur.

Front

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 a product in enzymatic reactions?

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A product is the substance that is formed as a result of an enzymatic reaction.

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What is the active site of an enzyme?

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The active site is the specific region of an enzyme where the substrate binds and the reaction occurs.

Front

What is an enzyme-substrate complex?

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An enzyme-substrate complex is the temporary molecule formed when an enzyme binds to its substrate.

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What effect do inhibitors have on enzymes?

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Inhibitors are substances that decrease the activity of enzymes by preventing substrates from binding to the active site.

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What is a competitive inhibitor?

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A competitive inhibitor is a substance that competes with the substrate for binding to the active site of the enzyme.

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What is a non-competitive inhibitor?

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A non-competitive inhibitor is a substance that binds to an enzyme at a site other than the active site, changing the enzyme's shape and function.

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What factors affect enzyme activity?

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Factors that affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.