In a mitochondrion, if the matrix ATP concentration is high, and the intermembrane space proton concentration is too low to generate sufficient proton-motive force, then
A) ATP synthase will stop working.
B) ATP synthase will hydrolyze ATP and pump protons into the matrix.
C) ATP synthase will hydrolyze ATP and pump protons into the intermembrane space.
D) ATP synthase will increase the rate of ATP synthesis.
Answer: C