C1.2- Aerobic Respiration Practice-HL

Front

Where does the Krebs cycle take place?

Back

Mitochondrial Matrix

Front

What does the Krebs cycle produce?

Back

CO2, acetyl-CoA, and NADH

Front

What do NADH and FADH2 release into the mitochondrial matrix?

Back

H+

Front

What is the 'fuel' for the Krebs cycle?

Back

Acetyl-CoA

Front

What are formed during the Krebs cycle that carry electrons and hydrogen ions to the Electron Transport Chain?

Back

NADH and FADH

Front

What is the primary function of the Krebs cycle?

Back

To generate energy carriers (NADH and FADH2) for the Electron Transport Chain.

Front

What is the role of Acetyl-CoA in the Krebs cycle?

Back

It acts as the starting substrate for the cycle.

Front

What are the end products of one turn of the Krebs cycle?

Back

3 NADH, 1 FADH2, 1 ATP (or GTP), and 2 CO2.

Front

How many times does the Krebs cycle turn for each glucose molecule?

Back

Twice, since one glucose molecule produces two pyruvate molecules.

Front

What is the significance of NADH and FADH2 in cellular respiration?

Back

They are electron carriers that transport electrons to the Electron Transport Chain.