Understanding ATP Production from Glucose

What is the primary process through which glucose is converted to ATP?

• Photosynthesis

• Fermentation

• Cellular respiration

• Glycolysis

How many ATP molecules are produced during glycolysis from one glucose molecule?

• 4 ATP

• 1 ATP

• 3 ATP

• 2 ATP

What is the role of the citric acid cycle in ATP production?

• The citric acid cycle directly produces ATP as its main product.

• The citric acid cycle is responsible for breaking down glucose into pyruvate.

• The citric acid cycle occurs in the cytoplasm of the cell.

• The citric acid cycle produces NADH and FADH2, which are used in the electron transport chain to generate ATP.

How many ATP are generated from the electron transport chain per glucose molecule?

• 20 to 24 ATP

• 10 to 12 ATP

• 36 to 40 ATP

• 28 to 34 ATP

What is the net gain of ATP from one molecule of glucose during cellular respiration?

• 36 ATP

• 18 ATP

• 24 ATP

• 30 ATP

Which process occurs in the mitochondria and contributes to ATP production?

• Citric acid cycle

• Fermentation

• Glycolysis

• Oxidative phosphorylation

What is the significance of NADH and FADH2 in ATP synthesis?

• NADH and FADH2 are waste products of ATP synthesis.

• NADH and FADH2 directly convert ADP to ATP without any other processes.

• NADH and FADH2 are crucial for ATP synthesis as they provide electrons for the electron transport chain, facilitating the production of ATP.

• NADH and FADH2 are only involved in glycolysis.

How does anaerobic respiration differ in ATP yield compared to aerobic respiration?

• Both anaerobic and aerobic respiration yield 4 ATP each.

• Anaerobic respiration yields 36-38 ATP, while aerobic respiration yields 2 ATP.

• Anaerobic respiration yields 2 ATP, while aerobic respiration yields 36-38 ATP.

• Anaerobic respiration yields 10 ATP, while aerobic respiration yields 20 ATP.

What is the theoretical maximum yield of ATP from one glucose molecule?

• 24 ATP

• 50 ATP

• 36-38 ATP

• 30 ATP

Why is the actual yield of ATP often less than the theoretical maximum?

• ATP is produced in excess during cellular respiration.

• Inefficiencies in energy transfer and usage in cellular processes.

• All ATP produced is used efficiently without loss.

• The theoretical maximum is always achieved in cells.