Respiration In Plants Question 159
Question: In the process of respiration in plants 180 gms of sugar +192 gms of oxygen produce:
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.
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Answer:
Correct Answer: C
Solution:
[c] Reaction of respiration is $ C_6H_{12}O_6+6O_2\to 6CO_2+6H_2O+674kcal $ 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=3\times 32=192gm $ Now we consider products of this reaction i.e.
$ \begin{aligned} & 6CO_2and6H_2O \\ & 6CO_2=6(12+32)=264gm \\ & 6H_2O=6(2+16)=108gm \\ \end{aligned} $
BETA
