MDCAT Biology MCQ #507

At the start of the Krebs cycle, the acetyl group is accepted by a four-carbon compound. Name this acceptor molecule.

MDCAT Biology MCQ #507

  1. Question 1

    Q1. At the start of the Krebs cycle, the acetyl group is accepted by a four-carbon compound. Name this acceptor molecule.

    • A) Oxaloacetate
    • B) Succinate
    • C) Malate
    • D) Alpha-ketoglutarate

    Answer: Oxaloacetate

    Explanation: Oxaloacetate (4C) combines with Acetyl-CoA (2C) to form Citrate (6C), initiating the cycle. Malate is a later intermediate.