What is a potometer? - Noon Academy

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What is a potometer?

Biology | Class 10 | ICSE | Selina | Transpiration

What is a potometer?

A Potometer is an instrument that measures the amount of water consumed by a plant and this water intake is almost equal to the water lost through transpiration.

The knife is sharpened and the twig of a plant is taken as shown in the figure. All equipment is filled with water so that no air gaps are present.

An air bubble is inserted into the horizontal capillary tube in the beaker carrying the water.

This is done by lifting the capillary tube colored water so that air can come in due to suction and immersion.

The study of the capillary tube continues. A reading of the capillary tube can provide the amount of water lost over time.

The air bubble can be restored to its original position by draining some of the water from the capillary tube by opening the stop-cock.

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