Question

which is required for both anaerobic respiration and aerobic respiration?
o oxygen
o water
o mitochondria
o glucose

Explanation:

• Oxygen: Only required for aerobic respiration.
• Water: Produced in aerobic respiration, not a reactant for both.
• Mitochondria: Site of aerobic respiration; anaerobic respiration occurs in cytoplasm.
• Glucose: Initial substrate for both aerobic (glycolysis first - in cytoplasm) and anaerobic respiration (glycolysis followed by fermentation in cytoplasm).

Answer:

glucose