Question

Potometer works on the principle of

• A. Amount of water absorbed equals to the amount transpired
• B. Root pressure
• C. Osmotic pressure
• D. Potential difference between the tip of the tube and that of the plant

Answer 1

The correct option is A

Amount of water absorbed equals to the amount transpired

A potometer is a device used to measure the rate of transpiration, or the rate of loss of water, from the leaves of a plant.

A potometer experiment can be performed for measuring the amount of water lost per unit time when different environmental aspects are varied.

Plants when exposed to variations in the environmental conditions will transpire at different rates from those at normal room conditions.