Biology - Transpiration Pull In Plants

Описание: Transpiration Pull In Plants
In this video, you will learn and understand How do water molecules move upwards from the roots to the leaves? and the Mechanism of Transpiration

It is a process call Transpiration in which water molecules move upwards from the roots and eventually escape from the stoma of leaves in the form of vapor.

When a water molecule escapes out into the atmosphere through a stoma, it pulls the water molecule below it to take its place. That molecule then pulls the next water molecule below it. This process continues till the roots.

The property in which water molecules attracts and pull one another is called cohesion. Cohesion makes water molecules stick to each other to form a continuous chain.

Whereas, adhesion is a property which makes water molecules get attracted to other molecules. It is due this property, water molecules stick to the xylem while travelling upwards. Hence, with the help of adhesion and cohesion, water molecules move upwards from the roots to the leaves against gravity.

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