CELL RESPIRATION
THE KREBS CYCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
2
|
|
|
3
|
|
|
4
|
|
|
6
|
Detailed explanation-1: -In one turn of the Krebs cycle, 3 molecules of NADH are produced.
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: -This means that there are two turns of Krebs cycle for every glucose molecule and, therefore, for a given molecule of glucose Krebs cycle produces 6 NADH and 2 ATP.
Detailed explanation-4: -Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
Detailed explanation-5: -Answer and Explanation: For each glucose molecule there are two net ATP and two NADH formed during glycolysis.