Electron Transport Chain/ Oxydative Phosphorylation

Front

What drives ATP synthesis by ATP synthase?

Back

H+ movement.

Front

Where are hydrogen ions pumped from and to in the mitochondria?

Back

From the matrix to the intermembrane space.

Front

What is the effect of increased levels of hydrogen ions in the intermembrane space?

Back

Increased ATP production.

Front

Which statements are TRUE about the process that occurs in cristae? I. ATP is synthesized by ATP synthase on the inner membrane of mitochondrion II. FADH2 transfers its hydrogen atoms to Citrate III. Formation of water molecule IV. Production of ATP in the electron transport chain is called oxidative phosphorylation

Back

I, III, and IV.

Front

What happens if the oxygen in the electron transport chain (ETC) is blocked by cyanide?

Back

NADH and FADH2 would be in high levels.

Front

What is the primary function of the electron transport chain?

Back

To transfer electrons and pump protons to create a proton gradient.

Front

What is oxidative phosphorylation?

Back

The process of ATP production in the electron transport chain using the proton gradient.

Front

What role does oxygen play in the electron transport chain?

Back

Oxygen acts as the final electron acceptor.

Front

What is the significance of the proton gradient in ATP synthesis?

Back

It drives the synthesis of ATP by ATP synthase.

Front

What are the two main electron carriers in the electron transport chain?

Back

NADH and FADH2.