AP Biology Unit 3 Review

Front

What is the final electron acceptor for cellular respiration?

Back

Oxygen (O2) is the final electron acceptor in cellular respiration, allowing for the production of ATP.

Front

Which organic molecules are labeled when CO2 is labeled with a radioactive isotope during photosynthesis?

Back

Carbohydrates are the organic molecules that would end up being radioactively labeled when CO2 is used in photosynthesis.

Front

How do enzymes increase the rate of chemical reactions?

Back

Enzymes increase the rate of chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What is the purpose of cellular respiration in eukaryotic cells?

Back

The purpose of cellular respiration is to break down carbohydrates to provide energy to the cell in the form of ATP.

Front

What is the final electron acceptor for the light reactions of photosynthesis?

Back

NADP+ is the final electron acceptor for the light reactions of photosynthesis.

Front

Define cellular respiration.

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is the role of NADP+ in photosynthesis?

Back

NADP+ acts as an electron carrier, accepting electrons during the light reactions and becoming NADPH.

Front

Explain 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.

Front

What is the main product of the Calvin cycle?

Back

The main product of the Calvin cycle is glucose, which is synthesized from carbon dioxide.

Front

What is the significance of the electron transport chain in cellular respiration?

Back

The electron transport chain is significant because it generates a proton gradient that drives ATP synthesis.