AP Bio Insta-Review Topic 3.1: Enzyme Structure

Front

What are enzymes classified as?

Back

Enzymes are classified as proteins.

Front

What happens to an enzyme when a substrate binds to it?

Back

The enzyme changes shape.

Front

Does an enzyme change the Gibbs free energy (ΔG) of a reaction?

Back

No, an enzyme does not affect the change in Gibbs free energy (ΔG).

Front

What is the specific region on an enzyme where the substrate binds?

Back

The substrate binds at the active site.

Front

How do enzymes increase the rate of chemical reactions?

Back

Enzymes increase the rate of chemical reactions by decreasing the activation energy required.

Front

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

Back

The active site is the region where the substrate binds and the reaction occurs.

Front

What is activation energy in the context of enzyme activity?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

Can enzymes be reused after a reaction?

Back

Yes, enzymes can be reused after catalyzing a reaction.

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, and substrate concentration.

Front

What is a substrate in enzyme reactions?

Back

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