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  4. Respiratory quotient of which diet is less than unity?

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Q. Respiratory quotient of which diet is less than unity?

Rajasthan PMTRajasthan PMT 2002

Solution:

Respiratory quotient $(R.Q)$ is the ratio of $CO _{2}$ released to oxygen consumed, it is variable for different substrates.
$R \cdot Q =\frac{\text { released } CO _{2} \text { volume }}{\text { consumed } O _{2} \text { volume }}$
$R.Q \,1.$ for carbohydrate
$<1$ for fats and proteins (aerobic respiration)
$> 1$ for organic acids under aerobic condition $0$ for succulents.