Unit 3 AP Biology Insta-Review (Cellular Energetics)

Front

What happens to reaction rate if temperatures decrease?

Back

Decrease

Front

What is an inhibitor that binds to the active site of an enzyme?

Back

Competitive inhibitor

Front

Which describes an exergonic reaction?

Back

Negative ΔG, spontaneous

Front

As the product concentration increases, reaction rate ____?

Back

Decrease

Front

Due to lower activation energy, how is the reaction rate affected?

Back

Increase

Front

What is the effect of temperature on enzyme activity?

Back

Higher temperatures generally increase reaction rates until a certain point, after which the enzyme may denature.

Front

Define activation energy.

Back

The minimum energy required for a chemical reaction to occur.

Front

What is a noncompetitive inhibitor?

Back

An inhibitor that binds to an enzyme at a site other than the active site, reducing its activity.

Front

What does ΔG represent in a chemical reaction?

Back

The change in free energy, indicating the spontaneity of the reaction.

Front

What is the difference between exergonic and endergonic reactions?

Back

Exergonic reactions release energy (negative ΔG), while endergonic reactions require energy input (positive ΔG).