AP BIOLOGY

CELL RESPIRATION

AEROBIC RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many reduced FAD molecules are produced by 1 molecule of glucose?
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules. Therefore, a total of up to 36 molecules of ATP can be made from just one molecule of glucose in the process of cellular respiration.

Detailed explanation-2: -Cellular respiration produces a maximum of 10 NADH and 2 FADH2 per glucose molecule.

Detailed explanation-3: -2.5 ATP/NADH and 1.5 ATP/FADH2 are produced in the electron transport chain. Some resources will say 3 ATP/NADH and 2 ATP/FADH2, but these values are generally less accepted now.

Detailed explanation-4: -The Krebs cycle yields three NADH molecules (two cycles) and 18 ATP molecules. In two cycles, four FADH2 molecules are generated, yielding four ATP molecules.

Detailed explanation-5: -These molecules are capable of further producing ATP molecules by transfer of electrons and with the enzyme ATP synthase. One NADH molecule produces 3 ATP molecules. Whereas one FADH2 molecule produces 2 ATP molecules.

There is 1 question to complete.