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Questions  

The number of decarboxylations that occur in one turn of citric acid cycle is:

a
Two
b
Three
c
Four
d
Six

detailed solution

Correct option is A

In Krebs cycle there is two successive steps of decarboxylation, leading to the formation of α-ketoglutaric acid and then succinyl-CoA. The conversions are as followsIsocitrate (6C) →α-ketoglutarate (5C) + CO2α-ketoglutarate (5C) → Succinyl CoA(4C) + CO2

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Similar Questions

Which of the following reaction is associated with decarboxylation reactions during the Citric acid Cycle?
(a) Isocitrate  α-Ketoglutarate
(b)  α-Ketoglutarate Succinyl CoA
(c) Succinate Fumarate
(d) Pyruvate Acetyl CoA


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