Answer:
(a) Cuticle are protective, hydrophobia waxy
covering produced by epidermal cells of leaves, young shoots and other aerial
parts. It minimizes the water loss through transpiration (with the help of
stomata) and also reduces pathogen entry.
Lignin hardens the cell wall and provides flexibility,
tensile and compressional strength to the cell wall. Suberin is present in cork
cells and makes the cell impervious to water.
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