IB-DP Cell Respiration Quiz

What is the primary energy currency within cells?

• NAD

• ATP

What molecule supplies energy for active transport, anabolism, and cellular movement within cells?

• ADP

• Glucose

• ATP

What is the role of FAD during aerobic cell respiration?

• Carrier of hydrogen and oxidation by removal of hydrogen

• Carrier of oxygen

What is the net yield of ATP and reduced NAD at the end of glycolysis?

• 2 ATP and oxidized NAD

• 2 ATP and reduced NAD

What is the purpose of converting pyruvate to lactate in anaerobic cell respiration?

• To reduce NAD

• To regenerate NAD

What is the role of oxygen in aerobic cell respiration?

• To produce carbon dioxide

• To accept electrons from the electron transport chain

What is the process in which the energy stored in the proton gradient is harnessed to synthesize ATP?

• Chemiosmosis

• Electron transport chain

What is the main difference between lipids and carbohydrates as respiratory substrates?

• Lipids yield less energy than carbohydrates

• Lipids yield more energy per gram than carbohydrates

What is the molecule that distributes energy within cells and plays a crucial role in various cellular activities?

• ATP

• NADH

What is the process by which glucose is broken down to produce pyruvate?

• Glycolysis

• Link reaction