MDCAT Biology MCQ #542

An investigator tracks a glucose molecule. Which factor differentiates its initial breakdown in glycolysis from its later oxidation in the Krebs cycle?

MDCAT Biology MCQ #542

  1. Question 1

    Q1. An investigator tracks a glucose molecule. Which factor differentiates its initial breakdown in glycolysis from its later oxidation in the Krebs cycle?

    • A) The requirement for molecular oxygen
    • B) The production of carbon dioxide
    • C) The cellular location of the enzymes
    • D) The formation of NADH from NAD+

    Answer: The cellular location of the enzymes

    Explanation: Glycolysis occurs in the cytosol, whereas the Krebs cycle takes place in the mitochondrial matrix; both involve oxidation.