AP Biology Enzymes and Energy

Front

What type of reaction is characterized by the breakdown of molecules and the release of energy?

Back

Catabolic reaction

Front

What is the term for a reaction that releases energy, often associated with spontaneous processes?

Back

Exergonic reaction

Front

How does pH affect enzyme activity?

Back

Larger numbers of H+ & OH- ions can distort the active site of the enzyme, affecting its function.

Front

What is the term for when a molecule competes with the substrate for the active site of an enzyme?

Back

Competitive inhibition

Front

What type of reaction is represented by the equation A + B -> C?

Back

Anabolic reaction

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up reactions by lowering the activation energy.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

What is the difference between catabolic and anabolic reactions?

Back

Catabolic reactions break down molecules and release energy, while anabolic reactions build up molecules and require energy.

Front

What effect does temperature have on enzyme activity?

Back

Enzymes have an optimal temperature range; too high or too low temperatures can denature the enzyme or reduce its activity.

Front

What is a substrate in the context of enzyme activity?

Back

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