Question

Put a tick mark (✓) against the correct alternative in the following statements:
The root-hairs are suited for absorbing water from the soil because:

• A. They have a large surface area.
• B. They have less surface area.
• C. They contain a solution of higher concentration than the surrounding water.
• D. Both 1 and 3.

Answer 1

The correct option is D Both 1 and 3.

The correct answer is (d)- Both 1 and 3.

The root hair is suitable for absorbing water from the soil in the following three ways:

• The numerous root hairs provide a large surface area. The more the surface area, the greater is the absorption.
• The cell wall is freely permeable and the cell membrane is semi-permeable.
• Root hair contains cell sap which is of a higher concentration than the surrounding soil water.