Question

RQ of proteins, carbohydrates, fats and organic acids are in order

• A. $<1,1,<1,>1$
• B. $>1,<1,1,1$
• C. $1,1,0,-1$
• D. $0,<1,1,>1$

Answer 1

The correct option is A $<1,1,<1,>1$

Respiratory quotient (RQ) is the ratio of the volume of carbon dioxide released to the volume of oxygen taken in respiration in the given period at standard temperature and pressure.

RQ = CO2 eliminated / O2 consumed

The value of RQ varies with the respiratory substrates and their oxidation. Thus, the measurement of RQ gives information about the nature of the substrate being respired by a particular tissue.

RQ for protein is 0.8-0.9, carbohydrate is 1, Fat is 0.7, and organic acids >1.

So, the correct answer is (A).