Question

When tripalmitin is used as a substrate in respiration, the R.Q. is

• A. 1.3
• B. 1
• C. 1.1
• D. 0.7

Answer 1

Answer: (D)

The respiratory quotient (RQ) is used in calculations of basal metabolic rate (BMR). It is the ratio of the volume of carbon dioxide produced by the body to the volume of oxygen consumed by the body in respiration over a period of time. It depends on the type of respiratory substrate used during respiration.

The R.Q. value for fatty acids is less than one. When tripalmitin (a fatty acid) is used as a respiratory substrate, the R.Q. is 0.7.

So, answer is option D. 0.7.