During cellular respiration, ATP synthase generates ATP when protons flow
- A
From the matrix into the intermembrane space against the gradient
- B
From the mitochondrial matrix into the nucleus via pore complexes
- Ccheck_circle
From intermembrane space back to matrix down their gradient
- D
Out of the cell across the plasma membrane via ion channels
Explanation
ETC pumps H⁺ into the intermembrane space; ATP synthase couples proton flow back to the matrix to drive ATP production.