# Given the Assertion and Reason below, Choose one of the following responses

Assertion:The rate of transpiration is measured by Ganong's potometer
Reason:Rate of transpiration decreases in light and increases in dark

(A) Assertion and reason are true and the reason is a correct explanation of the assertion
(B) Both assertion and reason are true but reason is not correct explanation of the assertion
(C) Assertion is true but the reason is false
(D) Both assertion and reason are false

Potometer measures the rate of water uptake and not rate of transpiration. During day time, due to the opening of stomata, transpiration increases and decreases during night. Hence both Reason and Assertion are false
Both assertion and reason are false
Hence (D) is the correct answer.
edited Nov 29, 2017 by meena.p