AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many NADH molecules are produced by a molecule of glucose through the Krebs’ Cycle?
A
2
B
3
C
4
D
6
Explanation: 

Detailed explanation-1: -How Many NADH are Produced In The Krebs Cycle? In one turn of the Krebs cycle, 3 molecules of NADH are produced. For complete oxidation of a glucose molecule, Krebs cycle yields 4 CO2, 6NADH, 2 FADH2 and 2 ATPs.

Detailed explanation-2: -The net energy output for one glucose molecule from glycolysis through the Krebs cycle is: 4 ATP, 10 NADH + H+, and 2 FADH2.

Detailed explanation-3: -The Krebs, or citric acid, cycle. Pyruvate, derived from glycolysis, is firstly converted into acetyl-CoA (2-C) which is subsequently condensed with oxaloacetate (4-C) to form the 6-C compound citrate.

Detailed explanation-4: -In glycolysis, two NADH and two ATP are produced, as are two pyruvate. The pyruvate are carried to the citric acid cycle, where they are converted to acetyl-CoA, and six NADH and one FADH2 are made.

Detailed explanation-5: -Answer and Explanation: For each glucose molecule there are two net ATP and two NADH formed during glycolysis.

There is 1 question to complete.