Transpiration is the price the plant pays for photosynthesis. Give reason
Dear Students
Transpiration is the evaporation of water from the leaves in the form of water vapour.According to Cohesion-Tension theory water molecules stick to one another through cohesion and form a column in xylem.The negative pressure created by transpirational pull exerts a force on these water particles causing their upward movement in xylem.This is called ascent of sap in which water moves upward from roots to the aerial parts of plant.Water is used in the process of photosynthesis which is transported through xylem.Transpiration invovles mainly xylem cells which becomes active during absorption process by the roots.Most of the water absorbed by the plants is hence lost by transpiration.Hence transpiration is the price plant pays for photosynthesis.
Thank You
Hope this will help you.
Transpiration is the evaporation of water from the leaves in the form of water vapour.According to Cohesion-Tension theory water molecules stick to one another through cohesion and form a column in xylem.The negative pressure created by transpirational pull exerts a force on these water particles causing their upward movement in xylem.This is called ascent of sap in which water moves upward from roots to the aerial parts of plant.Water is used in the process of photosynthesis which is transported through xylem.Transpiration invovles mainly xylem cells which becomes active during absorption process by the roots.Most of the water absorbed by the plants is hence lost by transpiration.Hence transpiration is the price plant pays for photosynthesis.
Thank You
Hope this will help you.