Ubiquinone carries electrons from the first enzyme complex to the second enzyme complex

Ubiquinone carries electrons from the third enzyme complex to the fourth enzyme complex

Ubiquinone accepts electrons directly from

Ubiquinone accepts electrons directly from

Ubiquinone is the final step in which oxygen is reduced to water

Complex I and II

Complex II and IV

Complex I and IV

Complex III and IV

12 protons

10 protons

8 protons

6 protons

14 protons

Complex IV

Complex III

Complex I

Complex II

Succinate to fumarate

Fumarate to malate

Citrate to isocitrate

Succinyl-CoA to succinate

Buildup of succinate in the mitochondrial matrix

Increase in glycolysis

Glycogen breakdown

Increase in the hydrogen ion concentration in the mitochondrial intermembrane space

a proton gradient across the inner mitochondrial membrane

a proton gradient across the outer mitochondrial membrane

an acetyl-CoA gradient across the outer mitochondrial membrane

an acetyl-CoA gradient across the inner mitochondrial membrane

is responsible for accepting electrons from NADH

carries electrons to oxygen

is responsible directly for the formation of water

includes succinate dehydrogenase

includes a succinate dehydrogenase

is responsible for accepting electrons from

has a cytochrome c binding site

includes an dehydrogenase

Directs electron to oxygen to form water

Includes an dehydrogenase

Includes a succinate dehydrogenase

Is responsible directly for the production of ATP from ADP and inorganic phosphate