(a) What is respiratory quotient (RQ)?

(b) the respiratory pathway in plants is called amphibolic pathway. Why ?

Mention the RQ values for carbohydrates, fats and proteins during aerobic respiration.

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1 Answers

(a) The ratio of volume of CO2 evolved to the volume of O2 consumed during respiration.

                                     OR

RQ = Volume of CO2 evolved / Volume of O2 consumed 

RQ of carbohydrates-1, fats less than 1 and proteins is less than 1

(b) Because respiratory pathway involves both anabolism and catabolism

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