Chapter 10 Cell Bio

These flashcards cover key concepts from Chapter 10 on Aerobic Respiration, summarizing essential points about cellular respiration, mitochondrial function, the citric acid cycle, and ATP synthesis.

What is the main external electron acceptor used in aerobic respiration?

Oxygen is the terminal electron acceptor in aerobic respiration.

Where does most aerobic ATP production occur in eukaryotic cells?

Most aerobic ATP production takes place in the mitochondrion.

How many ATP molecules can aerobic respiration potentially generate per glucose molecule?

Aerobic respiration can generate up to 38 ATP molecules per glucose.

What is the significance of acetyl CoA in cellular respiration?

Acetyl CoA enters the citric acid cycle and is completely oxidized to CO2.

What are the five stages of respiration?

The five stages are glycolysis, pyruvate oxidation, the citric acid cycle, electron transport, and ATP synthesis.

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

The electron transport chain transfers electrons from reduced coenzymes to oxygen to generate ATP.

What is produced in the citric acid cycle with each round?

Each round of the citric acid cycle involves the entry of two carbons, the release of two CO2, and the regeneration of oxaloacetate.

What is the function of coenzyme Q in the electron transport system?

Coenzyme Q transfers electrons and protons between different complexes in the electron transport chain.

How does the F1 complex contribute to ATP synthesis?

The F1 complex catalyzes the synthesis of ATP from ADP and inorganic phosphate, driven by the proton gradient.

What regulates the pyruvate dehydrogenase complex (PDH)?

PDH is inhibited by ATP and activated by AMP and ADP, reflecting the cell's energy needs.