NEETBotanyRespiration in Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The Respiratory Quotient (RQ) of tripalmitin is less than one. Reason (R): Fats contain less oxygen in their molecular structure compared to carbohydrates, hence they require more external oxygen for complete oxidation. In the light of the above statements, choose the most appropriate answer from t
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
The Respiratory Quotient (RQ) is the ratio of the volume of CO₂ evolved to the volume of O₂ consumed in respiration. Tripalmitin is a fat. The RQ of fats is less than 1 (specifically 0.7 for tripalmitin). Thus, the Assertion is correct. Fats have a highly reduced state and contain very little oxygen in their molecular structure compared to carbohydrates. Consequently, during aerobic respiration, they require a larger volume of external oxygen to completely oxidize the carbon and hydrogen atoms into CO₂ and H₂O . Si