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Breathing And Exchange Of Gases

Question

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Arrange the following compounds formed in respiration based on their C-atoms in ascending order.
I. Pyruvic acid
II. $α$ -ketoglutaric acid
III. Citric acid
IV. Malic acid
The correct answer is

IV, I, II and III

I, IV, II and III

I, II, IV and III

I, IV, III and II

Solution

B.

I, IV, II and III

Ascending order of the compounds formed in respiration based on their C- atoms is

Pyruvic acid (3C) < Malic acid (4C) < $α$ - ketoglutaric acid (5C) < Citric acid (6C)

Compound	C- atpms
I. Pyruvic acid	3 C
II. $α$ - ketoglutaric acid	5 C
III. Citric acid	6 C
IV. Malic acid	4 C

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