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  4. The respiratory quotient (RQ) of some of the compounds are 4, 1 and 0.7. These compounds are identified respectively as

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Q. The respiratory quotient (RQ) of some of the compounds are 4, 1 and 0.7. These compounds are identified respectively as

Respiration in Plants

Solution:

Respiratory quotient is the ratio of the volume of $CO _{2}$ produced to the volume of $O _{2}$ consumed in respiration.It is more than unity in organic acid (e.g. oxalic acid). RQ is one in case of carbohydrate because the respiration is aerobic. It is less than unity in fat (0.7) or protein (0.9).