LABORATORY REVIEW
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Provide water for the plant through the leaves
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Reduce the loss of water from the plants by evaporation
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Protect the plants from danger
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Detailed explanation-1: -A primary function of the waxy cuticle is to reduce water loss through the surface of the leaves, which is particularly important in water deficient areas like deserts which receives very little rainfall.
Detailed explanation-2: -The waxy covering on plant leaves, young stems, and fruit is called the “cuticle". It is composed of cutin, a wax-like material produced by the plant that is chemically a hydroxy fatty acid. The purpose of this covering is to help the plant retain water.
Detailed explanation-3: -To reduce water loss the leaf is coated in a waxy cuticle to stop the water vapour escaping through the epidermis. Leaves usually have fewer stomata on their top surface to reduce this water loss. Leaves enable photosynthesis to occur.
Detailed explanation-4: -The cuticles are protective, hydrophobic, waxy coverings produced by the epidermal cells of leaves, young shoots and all other aerial plant organs. Cuticles minimize water loss and effectively reduce pathogen entry due to their waxy secretion.