NEET Biology question

If RQ is less than 1.0 in a respiratory metabolism, it would mean that

(A)Carbohydrates are used as respiratory substrate
(B)Organic acids are used as respiratory substrate
(C)The oxidation of the respiratory substrate consumed more oxygen than the amount of CO2 releasedCorrect
(D)The oxidation of the respiratory substrate consumed less oxygen than the amount of CO2 released

Answer: (C)

Solution

Since RQ = CO2 evolved/O2 consumed, an RQ below 1 means O2 consumption exceeded CO2 release — characteristic of fat (or protein)

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Question ID VK-113205