WHY IS EPIDERMIS AN IMPORTANT TISSUE IN
PLANTS.HOW DOES EPIDERMIS GET REPLACED BY BARK
Answers
Answer:
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Explanation:
ANSWER
Epidermis is the outermost layer of the plant body. It carries out the following functions:
1. It covers the body from outside and protects them from pathogen attack and atmospheric changes.
2. It bears stomata which are involved in gaseous exchange (oxygen, carbon dioxide) with the atmosphere. It also has lenticels on the woody stem for gaseous exchange.
3. The stomata present on leaves are also involved in transpiration (water evaporation from plant body). Stomata are guarded by guard cells, which close and open the stomata as per requirement. Therefore, epidermis bearing stomata also checks water loss from the plant body.
4. The epidermis is protected by cuticle at some parts of the tree and it helps to stop water loss by evaporation.
Explanation:
Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection