Question

Difference between stomatal and cuticular transpiration

Answer 1

Stomatal transpiration is through the stomata that arw present on the leaves of the plant whereas cuticular transpiration is through the cuticles that are present on the roots of water submerged plants

Answer 2

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→ Stomatal Transpiration

*It occurs through minute pores called stomata present in epidermis of young stem and leaves.

*Loss of water through stomata is called stomatal transpiration.

*Opening and closing of stomata occurs due to osmotic changes in guard cells.

*When the guard cells are turgid, the Stomata get opened.

*When guard cells become flaccid, the Stomata get closed.

→Cuticular transpiration

*It takes place through the cuticle found on the surface of stems and leaves.

*Cuticle is a thin or thick layer on the epidermis of leaves and herbaceous stem.

*Cuticle reduces the use of water, but it is not strictly imprevious to water.

*Cuticular transpiration depends on the thickness of the cuticle.

*Thicker the cuticle less will be the rate of transpiration.

*Cuticular transpiration takes place throughout day and night.