Question

Cuticle is absent in ____________.
a) Mesophytes
b) Young roots
c) Mature stems
d) Leaves

Answer 1

A plant cuticle is a protective film that covers the epidermis of leaves and other aerial plant organs that are not covered by periderm. It is made up of wax-impregnated lipid and hydrocarbon polymers and is produced solely by epidermal cells.

Complete answer:
Plant leaves have external layers called cuticles that perform different tasks to stay conscious of ecological and physiological requests. These layers serve as guardians, keeping some elements in and others out. Despite the fact that cuticle layers can be found all over the ground plant sections, leaf cuticle performs specific tasks that help the plant grow and develop properly.
The dense waxy coating that covers the outside of aerial organs is called cuticle. Cutin, a waxy material, is used to make it. It is slender in Mesophytes and very dense in Xerophytes. Cuticle is absent in hydrophytes, underground tissues, and young roots. The bearing is critical. One of the other three alternatives is cuticle. Cutin, a waxy material, is used to make it. Mesophytes have a delicate form, whereas xerophytes have a massive form. Hydrophytes and underground organs do not contain it. It does not exist. Since excavations are supposed to absorb water. Water is kept in the plant by the cuticle on the stem and leaves; water is kept out by the cuticle on the root.

Note:
Since leaves are a plant's primary photosynthetic organ, the cuticle must not be permanently sealed. If it did, it would prevent the requisite gas exchange for photosynthesis. This is one of the reasons why the cuticle's ability to function in tandem with the stomata is important. The cuticle often collaborates with the stomata to aid photosynthesis. The cuticle covers the mesophyll layer, which contains the photosynthetic cells that obtain and process carbon dioxide to produce glucose, after the stomata open and carbon dioxide reaches the leaf. Since the cuticle is transparent, the sun's rays are not blocked from reaching the photosynthetic cells.