CIE iGCSE Co-Ordinated Science B8.3 Transpiration Exam Style Questions Paper 2
Question
In which weather conditions is the rate of transpiration fastest?
(A) cold and dry
(B) cold and wet
(C) warm and dry
(D) warm and wet
▶️Answer/Explanation
Ans: C
Question
A liquid starts to evaporate.
Which molecules escape and what happens to the temperature of the remaining liquid?
▶️Answer/Explanation
Ans: C
Question
A student investigates the effect of humidity on transpiration rate.
A plant is placed on a balance for one hour as shown. The mass of the plant decreases.
The student repeats the experiment in air of higher humidity. What is the effect of increasing humidity?
(A) larger decrease in mass due to a steeper diffusion gradient of water
(B) larger decrease in mass due to a less steep diffusion gradient of water
(C) smaller decrease in mass due to a steeper diffusion gradient of water
(D) smaller decrease in mass due to a less steep diffusion gradient of water
▶️Answer/Explanation
Ans : D
Question
Which graph shows the effect of humidity on the rate of transpiration?
▶️Answer/Explanation
Ans: C