Question

what is transpiration ?​

Answer 1

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• Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation.

Answer 2

Answer :-

The loss of water in the form of water vapour is called transpiration .

• It is a vital process.
• Mainly occur in stomata.
• Water evaporates in the form of vapour.
• Loss water per unit area is more .
• Regulated process.
• Occurs during day .
• Vapour is pure.
• Occurs in stomata , cuticle , lenticels .

Transpiration measured by potometer.Potometer actually measure water suction result of transpiration.

Type of potometre

• Ganongs
• Farmer's

Type of transpiration

• Stomatal
• Cuticular
• Lenticular

Advantage

• Help in salt absorption.
• Help in ascent of sap.
• Regulate plant temperature.

Disadvantages

Transpiration have more disadvantages than advantages

• Cause water scarcity.
• Result in water deficit in plant.