Oxidative Phosphorylation Enzymes

What is the primary enzyme responsible for ATP synthesis in oxidative phosphorylation?

• ATP hydroxylase

• ATP synthetase

• ATPase

• ATP synthase

Which enzyme complex is involved in transferring electrons from NADH to ubiquinone?

• Complex I

• Complex II

• Complex IV

• Complex III

What is the role of cytochrome c oxidase in the electron transport chain?

• Cytochrome c oxidase transfers electrons from cytochrome c to oxygen to form water.

• Cytochrome c oxidase transfers electrons from NADH to FADH2.

• Cytochrome c oxidase transfers electrons from cytochrome c to ATP.

• Cytochrome c oxidase transfers electrons from oxygen to cytochrome c.

Which enzyme complex is responsible for pumping protons across the inner mitochondrial membrane?

• Glycolysis

• ATP synthase

• Citric acid cycle

• Pyruvate dehydrogenase complex

What is the function of ATP synthase in oxidative phosphorylation?

• Produces ATP

• Regulates cellular respiration

• Transports electrons

• Breaks down ATP

Which enzyme catalyzes the conversion of ADP and inorganic phosphate into ATP?

• ATP synthase

• ADPase

• ATPase

• Phosphokinase

What is the final electron acceptor in the electron transport chain?

• oxygen

• hydrogen

• nitrogen

• carbon dioxide

Which enzyme complex is inhibited by cyanide in the electron transport chain?

• Cytochrome c oxidase (Complex IV)

• Cytochrome c reductase (Complex II)

• Cytochrome c reductase (Complex I)

• Cytochrome c reductase (Complex III)

What is the role of succinate dehydrogenase in oxidative phosphorylation?

• Succinate dehydrogenase inhibits the electron transport chain in oxidative phosphorylation.

• Succinate dehydrogenase is responsible for ATP synthesis in oxidative phosphorylation.

• Succinate dehydrogenase converts fumarate to succinate in oxidative phosphorylation.

• Succinate dehydrogenase catalyzes the oxidation of succinate to fumarate and transfers electrons to the electron transport chain.

Which enzyme complex is responsible for the oxidation of succinate to fumarate?

• Fumarate dehydrogenase

• Succinate dehydrogenase

• Succinate oxidase

• Malate dehydrogenase