Question 17
Transport in PlantsUse the diagram of the experimental set-up (a potted plant under a bell jar).
The function of the part labelled II is to
- A.prevent the entry of insects into the soil
- B.prevent the entry of light into the soil
- C.prevent light from shining on the delicate roots
- D.prevent evaporation from the soil
- E.make the container air tight
Show the answer and explanation
Answer: D (prevent evaporation from the soil)
Explanation
Covering the soil stops water evaporating from it, so any water collected must come from the leaves.