Name the following:
The apparatus used for measuring the rate of transpiration.

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Solution

Ganong's potometer.
The rate of transpiration is measured by Ganong's potometer.
The device consists of a vessel containing water.
A cut stem of a plant or a small plant with roots is placed in this vessel.
It is sealed with wax or any other material.
This vessel is connected to a water reservoir and a graduated capillary tube.
Apparatus is kept for some time at an optimum climatic condition.
The movement of bubbles through the graduated capillary tube is considered a measure of the rate of transpiration.

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Name the following :

(a) Openings on the stem through which transpiration occurs.

(b) The process by which the intact plant loses water in the form of droplets.

(d) A plant in which the stomata are sunken.

(e) The apparatus to record the rate of transpiration in a cut shoot.

(f) Any two parts of a leaf which allow transpiration.

(g) The structure in a leaf that allows guttation.

(h) Loss of water as droplets from the margins of certain leaves.

Which one of the following is used for measuring the rate of transpiration?

The instrument used for measuring the rate of transpiration is

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