Metabolism Review & Practice AP Biology

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes catalyze reactions by decreasing activation energy.

Front

What is a catabolic pathway?

Back

A catabolic pathway is a degradative process such as cellular respiration.

Front

How do enzyme-catalyzed reactions compare to non-catalyzed reactions?

Back

Enzyme-catalyzed reactions are faster than the same reactions in the absence of the enzyme.

Front

What is a competitive inhibitor?

Back

A competitive inhibitor is a substance that resembles a substrate and competes for binding to the active site of an enzyme, inhibiting its activity.

Front

What happens to ATP when a phosphate group is removed?

Back

Energy is released from ATP when a phosphate group is removed.

Front

What is activation energy?

Back

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

Front

What is the significance of the active site of an enzyme?

Back

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

Front

What is the difference between an anabolic and catabolic pathway?

Back

An anabolic pathway builds larger molecules from smaller ones, while a catabolic pathway breaks down larger molecules into smaller ones.

Front

How does temperature affect enzyme activity?

Back

Temperature affects enzyme activity; generally, higher temperatures increase reaction rates up to a point, after which the enzyme may denature.

Front

What is enzyme specificity?

Back

Enzyme specificity refers to the ability of an enzyme to select and catalyze a specific substrate.