Respiration In Plants Question 11
Question: In the process of respiration in plants 180 gms of sugar plus 192 gms of oxygen produce [CPMT 1984; DPMT 1986]
Options:
A) Large amount of $ CO_2 $ , no water and no energy
B) 132 gms of $ CO_2 $ , 54 gms of water and 337 kcals of energy
C) 264 gms of $ CO_2 $ , 108 gms of water and 674 kcals of energy
D) 528 gms of $ CO_2 $ , 216 gms of water and 1348 kcals of energy
Show Answer
Answer:
Correct Answer: C
Solution:
Reaction of respiration is $ C _ 6H _ {12}O _ 6 {} ~ +6O _2 {} ~ 6CO _2 {} + 6H _ 2O+674 \ kcal $ In this reaction considering molecular weight of each element, we get $ C _6H _{12}O _6 {} ~ = 6 \times 12+12 \times 1+6 \times 16=180gm $ $ O _2 {} ~ =6\times 32 = 192gm $ Now we consider products of this reaction i.e.
$ 6CO _2 $ and $ 6H _2O $ $ 6CO _2 {} ~ = 6( 12+32 ) = 264 gm $ $ 6H _2O = 6( 2+16 )=108gm $
BETA
