Electron Transport Chain Quiz

What is the primary role of the electron transport chain in the mitochondria?

• To break down fatty acids

• To drive ATP production

• To synthesize proteins

• To store genetic information

Which molecule donates electrons to complex 2 in the electron transport chain?

• Co-enzyme Q

• NADH

• Cytochrome C

• FADH2

What is the role of cytochrome C in the electron transport chain?

• To pump protons into the intermembrane space

• To shuttle electrons between complexes

• To synthesize ATP

• To oxidize NADH

How is water formed in the electron transport chain?

• By the reduction of oxygen at complex 4

• By the pumping of protons into the intermembrane space

• By the oxidation of NADH

• By the combination of ADP and inorganic phosphate

What drives the rotor-like movement of ATP synthase?

• The binding of NADH

• The flow of electrons

• The reduction of oxygen

• The flow of protons down their gradient