Question

Water proof layer present on outer wall of epidermal cells
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Answer 1

Explanation:

Cutin and waxes are fatty substances deposited in the walls of epidermal cells, forming a waterproof outer layer called the cuticle. Often, epicuticular waxes, in the form of sheets, rods, or filaments, are exuded over the cuticle, giving some leaves their whitish, greenish, or bluish