Cellular Respiration Quiz

What is the primary function of the respiratory system in relation to cellular respiration?

• To produce glucose

• To transport nutrients

• To exchange gases necessary for ATP production

• To store energy

Which type of cellular respiration is less efficient in ATP production?

• Aerobic respiration

• Oxidative phosphorylation

• Photosynthesis

• Fermentation

What are the by-products of aerobic respiration?

• Oxygen and glucose

• Carbon dioxide and water

• NADH and FADH2

• ATP and glucose

What is phosphorylation in the context of cellular respiration?

• The conversion of pyruvate to acetyl CoA

• The addition of a phosphate group to ADP

• The breakdown of glucose

• The release of carbon dioxide

Why is ATP considered the cellular energy currency?

• It is produced only in the mitochondria

• It is the only molecule that can store energy

• It carries a high-energy bond that releases energy when broken

• It is the most abundant molecule in cells

Which stage of aerobic respiration occurs in the cytosol?

• Oxidative phosphorylation

• Krebs cycle

• Electron transport chain

• Glycolysis

What is the main product of glycolysis?

• Acetyl CoA

• Pyruvate

• FADH2

• Water

Where does the Krebs cycle take place?

• Mitochondrial matrix

• Cytosol

• Thylakoid membrane

• Nucleus

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

• To convert glucose to pyruvate

• To produce NADH and FADH2

• To release carbon dioxide

• To power ATP synthesis using electron carriers

How many ATP molecules can be produced from one glucose molecule through aerobic respiration?

• 2

• 10

• 30-32

• 50