AP BIOLOGY

Detailed explanation-1: -Final answer: The kind of transpiration from the surface of leaves and the young stem is Cuticular transpiration.

Detailed explanation-2: -It is the evaporation of water from the cuticle of the plants. The cuticle is a waxy covering on the surface of the leaves of the plants. About 5-10% of the water from the leaves is lost through cuticular transpiration. During dry conditions when the stomata are closed, more water is transpired through the cuticles.

Detailed explanation-3: -Transpiration occurring directly from the surface of leaves and young stems through stomata is called stomatal transpiration.

Detailed explanation-4: -The cuticular transpiration takes place through cuticles.

Detailed explanation-5: -Cuticular transpiration: Cuticle is an impermeable covering present on the leaves and stem. It causes around 20% of transpiration in plants. Cuticular transpiration is lesser in xerophytes because they have thicker cuticles. Lenticular Transpiration: It is the evaporation of water through lenticels.