Cellular Respiration Quiz

What is the primary function of mitochondria in cells?

• To produce glucose

• To store genetic information

• To generate energy through cellular respiration

• To transport nutrients

Which process is common to both aerobic and anaerobic respiration?

• Glycolysis

• Electron transport chain

• Krebs cycle

• Fermentation

What is the net gain of ATP molecules during glycolysis?

• 6 ATP

• 2 ATP

• 4 ATP

• 8 ATP

In the absence of oxygen, what process do cells use to continue producing ATP?

• Calvin cycle

• Fermentation

• Photosynthesis

• Oxidative phosphorylation

What is the first molecule produced in the Krebs cycle?

• Glucose

• Lactic acid

• Citrate

• Pyruvate

Which molecules are primarily responsible for carrying energy to the electron transport chain?

• NADH and FADH2

• ATP and ADP

• Oxygen and carbon dioxide

• Glucose and pyruvate

What is the final electron acceptor in the electron transport chain during aerobic respiration?

• NADPH

• Water

• Carbon dioxide

• Oxygen

How does the electron transport chain create ATP?

• By breaking down glucose

• By using a hydrogen ion gradient

• By converting pyruvate to lactic acid

• By storing energy in NADH

What is the main difference between oxidative phosphorylation and photophosphorylation?

• The type of electron acceptor used

• The location where it occurs

• The type of energy source used

• The amount of ATP produced

Which process is responsible for the majority of ATP production in cellular respiration?

• Fermentation

• Electron transport chain

• Krebs cycle

• Glycolysis