Frequent question: Why are they called protective tissue?

What is protective tissue called?

epidermis tissue is also known as protective tissue .

Why is the epidermis called as a protective covering of the plants?

epidermis is called protective tissue because it forms the outermost covering of a plant whic protects the plants from different harmful causes.

Why are epidermal and cork cells 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 main function of protective tissue in plants?

The protective tissue is those tissue, which is present in the outermost layer of the plant such as roots, stem, and leaves. Protective tissue prevents desiccation, mechanical injury, and infection in plants. They form a protective barrier which does not allow the entry of the pathogen into the plant.

Why is epithelial tissue called protective tissue class 9?

Explanation: Epithelial tissue covers and protects many organs and cavities within the body. … In skin, many layers of epithelial cells are present to prevent wear and tear. Hence, it acts as a protective tissue in the animal body.

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What is the function of protective tissue?

Answer:Answer: The protective tissue is those tissue, which is present in the outermost layer of the plant such as roots, stem, and leaves. Protective tissue prevents desiccation, mechanical injury, and infection in plants. They form a protective barrier which does not allow the entry of the pathogen into the plant.

How are protective tissues formed?

As plants grow older, the outer protective tissue undergoes certain changes. A strip of secondary meristem, replaces epidermis of stem. Ultimately becomes several layered thick cork (bark) of trees. The cork cells do not contain protoplasm but are filled with resin or tannins.

What is supportive tissue?

So, a supportive tissue is a type of connective tissue in which the matrix is hard and rigid due to the presence of inorganic salts. The matrix encloses few cells. Adding on, fibres may be present or absent. It is also known as skeletal tissue since it forms the internal supporting framework of the body.

What is protective cell?

Protective tissues are usually present in the outermost layer of the plant body such as leaves, stem and roots and offer protection to the plant body. They prevent desiccation, mechanical injury, and infection in plants. Types of protective tissues: Epidermis. Cork.

How does the cork act as protective tissue?

The cork cells are dead and compactly packed with no intercellular space. Their cell walls are coated with a waxy substance, suberin, which do not allow water and gases to pass through. Therefore, it protects the plant against mechanical injury and also prevents the loss of water by evaporation.

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What is epidermal tissue?

Epidermal Tissue: This is the outer most layer of the plant body. The epidermis is usually single-layered. The epidermis is the outermost cell layer of the primary plant body. The stomata help in loss of water and gaseous exchange.