MDCAT Biology MCQ #266

During the preparatory phase of glycolysis, which enzyme is responsible for the conversion of Fructose-6-phosphate into Fructose-1,6-bisphosphate?

MDCAT Biology MCQ #266

  1. Question 1

    Q1. During the preparatory phase of glycolysis, which enzyme is responsible for the conversion of Fructose-6-phosphate into Fructose-1,6-bisphosphate?

    • A) Phosphofructokinase
    • B) Hexokinase
    • C) Pyruvate kinase
    • D) Aldolase

    Answer: Phosphofructokinase

    Explanation: Phosphofructokinase adds the second phosphate; Hexokinase is responsible for the initial phosphorylation of glucose entering the glycolytic pathway.