Question

Which of the following is an important feature of roots which help them to absorb water and minerals from the soil?

• A. Roots provide very less surface area
• B. Cells of root contain cell sap
• C. Root hairs have thick walls
• D. All of the above
  

Answer 1

Answer: (B)

Cells of root contain cell sap

Larger surface area and thinner walls of root hair are required to absorb water efficiently.

Cells of the root contain sap which has an accumulation of ions which significantly reduces the water potential. Hence water enters the cells from the soil passively.

So the correct answer is ' Cells of root contain cell sap'.