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Question

More CO2 is evolved than the volume of oxygen consumed when the respiratory substrate is

A
Fat
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B
Sucrose
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C
Glucose
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D
Organic acid
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Solution

The correct option is D Organic acid
R.Q. is the ratio of carbon dioxide evolved and the oxygen consumed during the process of respiration.
For organic acids as they consume less oxygen due to its adequate presence and gives R.Q. more than one.
2(COOH)6+024C02+2H20
RQ = 4 C02/1 02 = 4.0 is for oxalic acid.
SO the correct option is 'Organic acid.'.

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