Question
Biology Question on Transport in Plants
Which of the following is used to determine the rate of transpiration in plants?
A
porometer/hygrometer
B
potometer
C
auxanometer
D
tensiometer/barometer.
Answer
potometer
Explanation
Solution
Potometer is an instrument used to determine the rate of transpiration. There are four types of potometers. Simple, Ganong's, Bose's and Farmer's potometer. With the help of potometers we actually measure suction of water due to transpiration. Porometer is an apparatus for knowing the relative size of stomata. Tensiometer is an instrument that measures soil water tension. Auxanometer is an apparatus used for measuring increased or rate of growth in plants.