MDCAT Biology MCQ #510

In the mitochondrial electron transport chain, electrons eventually lose most of their energy. Which molecule acts as the final electron acceptor?

MDCAT Biology MCQ #510

  1. Question 1

    Q1. In the mitochondrial electron transport chain, electrons eventually lose most of their energy. Which molecule acts as the final electron acceptor?

    • A) Carbon dioxide
    • B) Oxygen
    • C) NAD+
    • D) Water

    Answer: Oxygen

    Explanation: Oxygen is the final electron acceptor in aerobic respiration, combining with electrons and protons to form water.