Question

Answer the following questions in 30–40 words:
(4x2 = 8 marks)
a) Explain how the absorption of water and minerals would be affected if the root hair
were lesser in number but of greater thickness.​

Answer 1

Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.