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Question

How many ATP are produced in mitochondria on complete oxidation of glucose?

A
24
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B
30
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C
34
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D
38
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Solution

The correct option is A 24
Name of process Site Total ATP formation
Glycolysis Cytoplasm 2NADH(i.e. 6ATP)+ 2ATP = 8ATP
Conversion of pyruvate to acetyl CoA Cytoplasm 2NADH = 6ATP
Kreb's cycle Mitochondria 6NADH + 2 FADH + 2GTP
= 18ATP +4ATP + 2ATP
= 24 ATP
1 NADH = 3 ATP, 1 FADH = 2 ATP
So, the correct answer is '24'

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