MDCAT Biology MCQ #244

During the initial 'preparatory phase' of glycolysis in a liver cell, which of the following energetic events must occur first?

MDCAT Biology MCQ #244

  1. Question 1

    Q1. During the initial 'preparatory phase' of glycolysis in a liver cell, which of the following energetic events must occur first?

    • A) Production of 4 ATP
    • B) Consumption of 2 ATP
    • C) Reduction of 2 NADP
    • D) Formation of 2 Pyruvate

    Answer: Consumption of 2 ATP

    Explanation: Glycolysis starts by consuming 2 ATP to phosphorylate glucose. The production of 4 ATP occurs later during the energy-yielding payoff phase.