Question

Rate of transpiration and stomatal opening's are measured respectively by

• A. porometer and potometer
• B. potometer and porometer
• C. potometer and tensiometer
• D. hygrometer and porometer

Answer 1

The correct option is B potometer and porometer

Potometer is the device used to measure the rate of transpiration.

Porometer is the device for measuring the area of the stomatal opening's of leaf by the amount of a gas passing through a given area on it.

Tensiometer is an instrument used to measure the surface tension of liquids.

Hygrometer is an instrument that is used to measure the humidity of the air.