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What is the role of guard cell?
Guard cells in epidermis around stomata pores helps in transpiration through stomata and exchange of gases.
How is evaporation linked to transpiration?
Evaporation of water through stomata or cuticle of leaf epidermis is called transpiration.
What does the thick waxy cuticle do on the epidermis of plants?
It restricts cuticular transpiration
What is the role of epiderms in plants?
Epidermis is the outermost layer in plants just like the skin. Epidermis protects the internal tissues from mechanical injury and pathogens.It also helps in exchange of gases , transpiration and other processes.Root hair present on epidermis of root help in absorption of water and mineral from soil.
Why are stomata absent or present in low numbers in the upper epidermis?
To minimize the rate of transpiration
How does lower epidermis adapt to do it job in the leaf?
In dicot plants the lower epidermis is frequently ruptured by stomata and thus helps in gaseous exchange and transpiration.
Why do the lemna form their stomata in the upper epidermis?
because the amount of water is less on the lower epidermis, along with the sunlight, and because if lemna formed their stoma in the lower epidermis, transpiration would be scarce.
Why there are more stomata in lower epidermis than in upper epidermis?
Because lower epidermis remains away from the light and in the absence of light the water loss through transpiration is minimized.
How does transpiration play a role in the water cycle?
hello
How does transpiration play a role in water cycle?
hello
Why lower epidermis has more guard cells?
because lower epidermis is not covered with dust which falls from above.
What role do root hairs play in the process of transpiration?
They increase surface area . They create a covering with air. It reduces transpiration rate
