VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen And Schoolexamen

Access More Questions

In mitochondrial oxidative phosphorylation, high-energy electrons pass through Complexes I to IV of the electron transport chain. How does this electron flow drive ATP synthesis by ATP synthase?

Electrons are directly transferred to ATP synthase to phosphorylate ADP. Protons are pumped into the intermembrane space, creating a electrochemical gradient that flows back into the matrix through ATP synthase. Protons are pumped into the matrix, causing ATP synthase to actively export ATP into the cytosol. Pyruvate is oxidized directly inside ATP synthase, releasing energy for ADP phosphorylation.

Correct Answer:

Protons are pumped into the intermembrane space, creating a electrochemical gradient that flows back into the matrix through ATP synthase.

Access more questions from this quiz

Continue to VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen and Schoolexamen for more practice questions and the full quiz experience.

Access More Questions