Cellular Respiration and Photosynthesis Quiz

What is the primary purpose of glycolysis in cellular respiration?

• To split glucose into pyruvate

• To convert ATP to ADP

• To produce water

• To generate oxygen

During the Krebs cycle, what molecule is formed when pyruvate combines with coenzyme A?

• Citric acid

• Acetyl CoA

• NADH

• FADH2

Which of the following is NOT a product of the Krebs cycle?

• Oxygen

• Carbon dioxide

• ATP

• NADH

In the electron transport chain, what is the role of NADH?

• To pump protons into the matrix

• To transfer electrons to carriers

• To produce water

• To synthesize glucose

What is the final electron acceptor in the electron transport chain?

• Oxygen

• ATP

• Water

• Carbon dioxide

What process involves the flow of hydrogen ions through ATP synthase to produce ATP?

• Glycolysis

• Krebs cycle

• Fermentation

• Chemiosmosis

What is the total ATP yield from one molecule of glucose during cellular respiration?

• 2 ATP

• 36-38 ATP

• 12 ATP

• 24 ATP

Which process in cellular respiration directly produces the most ATP?

• Glycolysis

• Fermentation

• Krebs cycle

• Electron transport chain

What is the main byproduct of cellular respiration?

• Glucose

• Oxygen

• Water

• NADH

Which of the following processes is aerobic, requiring oxygen?

• Krebs cycle

• Glycolysis

• Fermentation

• Photosynthesis