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Question

In hexose monophosphate shunt, the net formation of ATP molecules is

A
36
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B
35
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C
38
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D
34
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Solution

The correct option is A 36
Hexose monophosphate shunt is an alternative pathway to glycolysis or the tricarboxylic acid cycle for glucose oxidation. It occurs in the cytoplasm and has two phases; the oxidative phase and the non-oxidative phase.
This is the only process that generates reduced NADPH₂ which act as the reducing agent in the biosynthetic processes.
6 glucose molecules that enter hexose monophosphate shunt, produces 12 NADPH₂ and 6 carbon dioxide.
12 NADPH₂ molecules when undergo ETS forms 36 molecules of ATP.
So, the correct option is '36'

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