What is the role of epidermis and cork as protective tissues in plants?
Epidermis: It is the outer covering of cells in plants. It carries out protective function (protecting plants from some unfavorable conditions). … These cells are lifeless with no intercellular spaces and are greatly thickened with suberin. Cork cells avert desiccation, infection, and mechanical injury.
Why epidermal and cork are called protective tissue?
epidermis and cork cells are known as protected tissue because epidermis and cork cells protect the plant from water loss and protects the plant from insects. epidermis and cork cells had waxy coating known as cutin and suberin which helps the plant from water loss .
What is the role of cork and epidermis?
Epidermis protect the underlying of the cells, prevents the loss of moisture from the leaves and stems. Epidermis allows gaseous exchange to take place which is necessary for photosynthesis and respiration. … The cork to waterproof the stem and is worn off as the tree grows in thickness.
Why is epidermis considered as a protective tissue?
The epidermis is considered a protective tissue because its prime purpose is to form a physical barrier between the outside and inside of the body. On the top stratum (layer) of the epidermis, the cells are dead, and so have no physiological function besides to form a barricade against the outside.
What is the function of the cork?
Function of Cork Cells
Cork cells prevent water loss from plants and also make them more resistant to bacterial and fungal infection.
What is epidermis and what is its role?
The epidermis is the outer layer of your skin, and it plays an important role in protecting your body from things like infection, UV radiation, and losing important nutrients and water.
What is the role of epidermis in plants Class 9 Ncert?
Answer: The epidermis is formed of single contimous layered cells. … Epidermal cells on the aerial parts of the plant secrete a waxy, water-resistant layer on their outer surface. It checks the loss of water, mechanical injury and invasion by parasitic fungi.
Is cork a protective tissue?
Complete step by step answer: Cork is a protective tissue with the suberized cells. That form stick and waterproof covering of older stem and root. Cork is the outer protective layer of the tree. Suberin is a waterproofing waxy substance that restricts the water movement.
What is epidermis and cork cell and its function?
epidermis: it prevents loss of water as it is water resistant, it protects an organism from outer harsh environment and they help in exchange of gases. cork cell: they prevent loss of water and they are protective in nature.