Respiration In Plants Question 131

Question: What is the value of RQ of castor seeds, if the imaginary values of Ganong’s respirometer are as follows (i) First rise of saline = 10 ml (ii) Second rise of saline after adding KOH = 30 ml

Options:

A) 0.33

B) 0.75

C) 0.85

D) 3.00

Show Answer

Answer:

Correct Answer: B

Solution:

$ \frac{Vol.\ \text{of }C{O_2}}{Vol\text{.

of }O_2} $ $ =\frac{V_2\ cc}{V_1\ cc+V_2\ cc} $
$ \Rightarrow R.Q.\ =\ \frac{30\ cc}{10\ cc+30\ cc}=0.75 $