Respiration In Plants Question 67
Question: When 100% carbon is oxidized to $ CO_2 $ , the efficiency of such a respiration is
Options:
A) 40%
B) 60%
C) 90%
D) 100%
Show Answer
Answer:
Correct Answer: A
Solution:
In respiration process, total 36 ATP are produced.
Each ATP molecule contains 7.6 kcal energy.
Therefore total energy released in respiration is 36 times 7.6 = 273.6 kcal.
But complete oxidation of glucose produces 686 kcal energy, therefore respiratory efficiency = $ =\frac{273.6}{686}\times 100\approx 40% $
BETA
