Respiration In Plants Question 136
Question: In Opuntia, in night the R.Q. will be [CPMT 1986]
Options:
One
B) Less than one percent
C) More than one organism
D) Zero
Show Answer
Answer:
Correct Answer: D
Solution:
In some succulent or fleshy plants e.g., Opuntia, carbohydrates are incompletely oxidized to organic acids in the dark without the evolution of $ CO_2 $ $ \underset{glucose}{\mathop{2C_6H_{12}O_6}},+3O_2\xrightarrow{{}}\underset{malic,acid}{\mathop{3C_4H_6O_5}},+3H_2O $ $ R\text{.Q}\text{.}=\frac{CO_2}{O_2}=\frac{0}{3}=0 $ (less than one)
BETA
