Question

Water lost in guttation is:

• A. pure water
• B. impure water
• C. in vapour form
• D. either ‘a’ and ‘b’

Answer 1

The correct option is B

impure water

The correct option is B.

Explanation of the correct option:

1. Guttation is referred to as a process of secretion of water in the form of water droplets from the pores of vascular plants.
2. It mainly happens at night time when the soil is moist and the roots absorb water.
3. The increase in water causes the expelling of impure water out of the plant, onto the leaf tips, due to root pressure.
4. The water lost in this process is a dilute solution containing mineral salts like potassium.
5. Often, the process of guttation is confused with the droplets on the plant surface due to condensation.
6. Guttation is the loss of water that is impure.

Explanation of the incorrect options:

Option A: Pure water is not lost in guttation.

Option C: Water in the form of vapors is lost in the process of transpiration through stomata.

Final answer: Water lost in guttation is impure water.