MDCAT Biology MCQ #506

During the energy investment phase of glycolysis, how many ATP molecules are consumed per molecule of glucose before energy can be harvested?

MDCAT Biology MCQ #506

  1. Question 1

    Q1. During the energy investment phase of glycolysis, how many ATP molecules are consumed per molecule of glucose before energy can be harvested?

    • A) 4 ATP
    • B) 1 ATP
    • C) 2 ATP
    • D) 0 ATP

    Answer: 2 ATP

    Explanation: The preparatory phase of glycolysis requires the input of 2 ATP molecules to phosphorylate glucose and fructose-6-phosphate.