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In TCA cycle, how many reduced co- enzymes are produced from acetyl CoA?

Option: 1

3NADH,1FADH2

 


Option: 2

 2NADH,1FADH2

 


Option: 3

4NADH,2FADH2

 


Option: 4

5NADH,1FADH2


Answers (1)

As we learn

Energy production during TCA cycle -

The total of 24 ATP are produced from two acetyl CoA/ 1 glucose

6 NADH = 6*3 ATP = 18 ATP

2FADH_{2} = 2*2 ATP = 4 ATP

2 GTP = 2*1 ATP = 2 ATP

 

-

 

 Two molecules of pyruvate are formed from one molecule of glucose. So, TCA cycle must occur twice for each molecule of glucose respired. Therefore 2x3=6NADH and 2x1=2FADH2 are formed from two molecules of acetyl CoA.

 

Posted by

Sumit Saini

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