MDCAT Biology MCQ #363

According to the chemiosmotic model, where is the high concentration of hydrogen ions (protons) established during the mitochondrial electron transport chain?

MDCAT Biology MCQ #363

  1. Question 1

    Q1. According to the chemiosmotic model, where is the high concentration of hydrogen ions (protons) established during the mitochondrial electron transport chain?

    • A) Mitochondrial matrix
    • B) Inner mitochondrial membrane
    • C) Intermembrane space
    • D) Cytosol

    Answer: Intermembrane space

    Explanation: Protons are pumped into the intermembrane space, creating a gradient. The matrix (Option A) is where the protons flow back from.