Cellular Respiration Quiz

What is the first step of cellular respiration?

• Glycolysis

• Krebs cycle

• Photosynthesis

• Electron transport chain

Which molecule is broken down during glycolysis?

• carbon dioxide

• water

• glucose

• oxygen

Where does the Krebs cycle take place in the cell?

• endoplasmic reticulum

• cytoplasm

• nucleus

• mitochondria

What is the main product of the Krebs cycle?

• ATP

• Carbon dioxide

• Glucose

• Water

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

• oxygen

• hydrogen

• glucose

• carbon dioxide

What is the difference between anaerobic and aerobic respiration?

• Aerobic respiration produces more ATP than anaerobic respiration.

• Anaerobic respiration occurs in the presence of oxygen, while aerobic respiration occurs in the absence of oxygen.

• Anaerobic respiration does not require oxygen, while aerobic respiration does.

• Anaerobic respiration requires more oxygen than aerobic respiration.

What is the net gain of ATP in anaerobic respiration?

• 10 ATP

• 36 ATP

• 0 ATP

• 20 ATP

What is the total number of ATP molecules produced in aerobic respiration?

• 38

• 20

• 10

• 50

What is the role of oxygen in aerobic respiration?

• Oxygen is used to release energy from the sun

• Oxygen is used to convert glucose into ATP

• Oxygen is used as the final electron acceptor in the electron transport chain.

• Oxygen is used to produce carbon dioxide

Where does anaerobic respiration occur in the absence of oxygen?

• Endoplasmic Reticulum

• Nucleus

• Mitochondria

• Cytoplasm