AP Biology Exam - Unit 3 Review

Front

What is chemiosmosis?

Back

Chemiosmosis is the process that uses a proton gradient to power ATP Synthase and produce ATP.

Front

What does an increase in substrate concentration do to enzyme activity?

Back

Increasing substrate concentration typically increases enzyme activity until the enzyme becomes saturated.

Front

What is the primary goal of photosynthesis?

Back

The primary goal of photosynthesis is to convert light energy into glucose energy.

Front

Why do animal cells produce less ATP than cellular respiration can provide?

Back

Animal cells may produce less ATP due to limited oxygen availability.

Front

What is competitive inhibition in enzyme activity?

Back

Competitive inhibition occurs when a substance competes with the substrate for the active site of an enzyme.

Front

What is the role of ATP Synthase in cellular respiration?

Back

ATP Synthase is an enzyme that synthesizes ATP from ADP and inorganic phosphate using a proton gradient.

Front

How does temperature affect enzyme activity?

Back

Temperature can affect enzyme activity; generally, higher temperatures increase activity up to a point, after which enzymes may denature.

Front

What is the effect of pH on enzyme function?

Back

Each enzyme has an optimal pH range; deviations can lead to decreased activity or denaturation.

Front

What is noncompetitive inhibition?

Back

Noncompetitive inhibition occurs when an inhibitor binds to an enzyme at a site other than the active site, reducing its activity.

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more ATP, while anaerobic respiration occurs without oxygen and produces less ATP.