The functions of cork and cuticle are similar in that both of these features help to protect plants from damage and water loss. However, cork and cuticle are structurally and functionally different.
Cork is a type of tissue that develops in the bark of woody plants and serves to protect the plant from physical damage, disease, and water loss. Cork cells are dead at maturity and have a thick, waterproof cell wall composed of suberin, which helps to prevent water from entering or exiting the plant. The cork layer also helps to regulate temperature and gas exchange in the plant.
Cuticle, on the other hand, is a waxy layer that covers the leaves, stems, and other aerial parts of plants. The cuticle helps to prevent water loss by creating a barrier that limits the movement of water out of the plant. It also helps to protect the plant from damage and disease by providing a physical barrier against pathogens and pests. The cuticle can also reflect excess light, which helps to reduce the amount of light energy that is absorbed by the plant.