Which of the Following Takes Place in the Q Cycle

Question

Which of the following takes place in the Q cycle?
A)Two protons are pumped into the matrix.
B)Electrons are transferred from bHto bL.
C)Two electrons are passed from bLto UQ.
D)One UQH₂ is returned to the pool.

Accepted Answer

In the Q cycle, one UQH₂ (ubiquinol) is oxidized, and one of the resulting ubiquinones is returned to the pool, while the other is reduced back to ubiquinol.