MDCAT Biology MCQ #298

In the electron transport chain, electrons finally combine with protons and an external inorganic molecule. What is the resulting product?

MDCAT Biology MCQ #298

  1. Question 1

    Q1. In the electron transport chain, electrons finally combine with protons and an external inorganic molecule. What is the resulting product?

    • A) Carbon dioxide
    • B) Pyruvate
    • C) Water
    • D) ATP

    Answer: Water

    Explanation: Oxygen acts as the final electron acceptor forming water; carbon dioxide is tempting but it is released during the Krebs cycle.