TREE PHYSIOLOGY
TRANSPIRATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Contains chlorophyll to absorb light.
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Prevents too much water loss.
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It transports water to the leaf.
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None of the above
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Detailed explanation-1: -Cuticle refers to the waxy, translucent upper layer of leaves. It’s a non-cellular protective layer present on the outside of many plants’ epidermis. The cuticle serves as a water permeability barrier, preventing excessive water loss from the plant’s body due to evaporation.
Detailed explanation-2: -Thick waxy cuticle: The cuticle cuts down water loss in two ways: it acts as a barrier to evaporation and also the shiny surface reflects heat and so lowers temperature. Sunken stomata: Stomata may be sunk in pits in the epidermis; moist air trapped here lengthens the diffusion pathway and reduces evaporation rate.
Detailed explanation-3: -The plant cuticle is an extracellular hydrophobic layer that covers the aerial epidermis of all land plants, providing protection against desiccation and external environmental stresses.
Detailed explanation-4: -A waxy layer known as the cuticle covers the leaves of all plant species. The cuticle reduces the rate of water loss from the leaf surface. Other leaves may have small hairs (trichomes) on the leaf surface. Trichomes help to avert herbivory by restricting insect movements or by storing toxic or bad-tasting compounds.
Detailed explanation-5: -The cuticle covers a plant’s leaves, reducing water loss from the plant. The cuticle is one part of the leaf tissue’s dermal layer. In addition to helping the plant retain water, the cuticle helps the dermal layer perform other functions vital to plant health.