RQ (Respiratory Quotient) of carbohydrate is | vedclass

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(D) The Respiratory Quotient $(RQ)$ is defined as the ratio of the volume of $CO_2$ evolved to the volume of $O_2$ consumed during respiration $(RQ =

Vedclass · Accepted Answer

Carbohydrates have more $O_2$ content, therefore less amount of external oxygen is required for their oxidation.

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(D) The Respiratory Quotient $(RQ)$ is defined as the ratio of the volume of $CO_2$ evolved to the volume of $O_2$ consumed during respiration $(RQ = \frac{	ext{Volume of } CO_2 	ext{ evolved}}{	ext{Volume of } O_2 	ext{ consumed}})$.For carbohydrates (e.g., glucose), the equation is: $C_6H_{12}O_6 + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{Energy}$.Here, $RQ = \frac{6}{6} = 1.0$.In contrast, fats and proteins are more reduced than carbohydrates, meaning they contain less oxygen relative to their carbon content. Consequently, they require more external oxygen for complete oxidation, resulting in an $RQ$ value of less than $1.0$ (typically $0.7$ for fats and $0.9$ for proteins).Therefore, carbohydrates have a higher $RQ$ because they are already partially oxygenated, requiring less atmospheric oxygen for complete oxidation.

$RQ$ (Respiratory Quotient) of carbohydrate is more than lipid and protein because ............

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