AP Biology Unit 3 Review

Front

What is the location of the electrochemical gradient of protons in the electron transport chain of cellular respiration?

Back

Intermembrane space.

Front

Which of the following is NOT a way that enzymes speed up chemical reactions?

Back

Increase required energy of activation.

Front

Describe the pathway of electrons in the light reactions of photosynthesis.

Back

H₂O → PSII → ETC → PSI → NADPH.

Front

Where does the Krebs cycle take place?

Back

Mitochondrial Matrix.

Front

What is the function of the electron transport chain between Photosystem II and Photosystem I?

Back

Establish electrochemical gradient of protons.

Front

Define cellular respiration.

Back

The process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is the role of ATP synthase in cellular respiration?

Back

To synthesize ATP from ADP and inorganic phosphate using the energy from the proton gradient.

Front

What are the main products of the Krebs cycle?

Back

NADH, FADH₂, ATP, and CO₂.

Front

What is the significance of the light-dependent reactions in photosynthesis?

Back

They convert solar energy into chemical energy (ATP and NADPH) and produce oxygen.

Front

Explain the role of water in the light reactions of photosynthesis.

Back

Water is split to provide electrons, protons, and oxygen during the light reactions.