NEETBotanyRespiration in Plants
Match List-I with List-II regarding respiratory substrates and their properties. List-I List-II A. Carbohydrates 1. 0.9 B. Proteins 2. 1.0 C. Tripalmitin 3. Never used as respiratory substrates D. Pure proteins or fats 4. 0.7 Choose the correct answer from the options given below:
Options
- AA-2, B-4, C-1, D-3
- BA-1, B-2, C-4, D-3
- CA-2, B-1, C-4, D-3
- DA-2, B-1, C-3, D-4
Correct answer
C. A-2, B-1, C-4, D-3
Step-by-step solution
The respiratory quotient (RQ) depends upon the type of respiratory substrate used during respiration. According to NCERT: - When carbohydrates are used as substrate and are completely oxidised, the RQ will be 1.0 . - When fats are used in respiration, the RQ is less than 1.0 . Calculations for a fatty acid, tripalmitin, show an RQ of approximately 0.7 . - When proteins are respiratory substrates, the ratio would be about 0.9 . - It is important to note that pure proteins or fats are never used as respiratory substr