PLANTS
THE LEAF
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The palisade mesophyll; do not let the leaf cells die and exchange of gases
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The upper epidermis, exchange of gases and protect the leaf
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The waxy cuticle; protects the cells inside the leaf and carry water
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The waxy cuticle; reduces the of water loss from the leaf surface and does not let the cells in the leaf die.
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Detailed explanation-1: -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-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. In arid regions, that is very important.
Detailed explanation-3: -The Cuticle and Upper Epidermis This outermost layer is called the cuticle. It is generally waxy to protect the leaf and prevent water loss.
Detailed explanation-4: -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.