Under which condition would you expect the mitochondrial proton gradient to be highest and therefore ATP synthesis to proceed?
1. pyruvate (present)-oxygen (present)-ATP levels (high)
2. pyruvate (present)-oxygen (present)-ATP levels (low)
3. pyruvate (present)-oxygen (absent)-ATP levels (high)
4. pyruvate (absent)-oxygen (present)-ATP levels (low)

In the mitochondrial electron transport system, the term Complex III refers to:
1. NADH dehydrogenase
2. Cytochrome c
3. FADH₂
4. Cytochrome bc₁ complex

For each ATP produced, how many H passes through F₀ from the intermembrane space to the matrix down the electrochemical proton gradient?

1. 1
2. 2
3. 3
4. 4

Oxidative phosphorylation is

FADH₂ is oxidized by

Oxidation of one molecule of FADH2 gives

Oxidation of FADH2 actually involves except

Oxidation of complex NADH involves except

Which of the following complex is involved in the transfer of 4 hydrogen ions across the mitochondrial membrane?

Which of the following complex does not allow transfer of Protons across the mitochondrial membrane but transfer of electrones in the inner membrane?