· Mention the regions of the plant body where
il following tissues are found :
(i) Parenchyma (ii) Collenchyma
(iii) Phloem
(iv) Protective tissues
(v) Areolar tissue
Answers
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7
Answer:
(i) parenchyma
Explanation:
The parenchmya is widely disturbed in plant body such as stem, roots, leaves, flowers and fruits
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PARENCHYMA
Parenchyma is a continuous tissue in cortex and medulla of stems and roots, as well as in leaves, fruits pulp, and seeds endosperm. It can account for around 80 % of the living cells of a plant. Some parenchymatic cells are components of the vascular tissues, xylem and phloem
COLLENCHYMA
Collenchyma cells are elongated cells with irregularly thick cell walls that provide support and structure. Their thick cell walls are composed of the compounds cellulose and pectin. These cells are often found under the epidermis, or the outer layer of cells in young stems and in leaf veins.
PHLOEM
Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells
PROTECTIVE TISSUES
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
AEROLAR TISSUE
A plant tissue consisting of roughly spherical relatively undifferentiated cells, frequently with air spaces between them.
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