Respiration in Plants Question 56
56. Apparatus to measure rate of respiration and R.Q. is
[1992]
(a) Auxanometer
(b) Potometer
(c) Respirometer
(d) Manometer
Show Answer
Answer : c
Hints & Solutions
(c) Respirometer is an instrument for measuring respiratory quotient as well as rate of respiration. A respirometer allows measurement of changes in gas volumes as organisms respire in a sealed chamber. As they respire, organisms consume $O_2$ and produce $CO_2$, which is absorbed by potassium hydroxide $(KOH)$ solution.
