Question

In which of the following reactions of respiration is oxygen required?

• A. Conversion of pyruvate to ethanol
• B. Conversion of glucose to pyruvate
• C. Conversion of pyruvate to CO2, H2O, and energy
• D. Conversion of pyruvate to CO2

Answer 1

Answer:

C. Conversion of pyruvate to CO2, H2O, and energy

Oxygen is needed for aerobic respiration, specifically in the conversion of pyruvate to carbon dioxide, water, and energy Oxygen us an element that is also used in the other processes of aerobic respiration like Krebs cycle, glycolysis, pyruvate oxidation as it is aerobic catabolism of carbohydrates to carbon dioxide, water, and energy and this process of aerobic respiration takes place in bacteria and eukaryotes