Question

Write two features of parenchyma , collenchyma , and sclerenchyma and with diagrams

Answer 1

Parenchyma is the most abundant plant tissue characterized by thin-walled isodiametric cells, which may be oval, round or polygonal in shape and have cellulosic walls. It is mainly found in soft parts of the plant like root cortex, ground tissue in stem and mesophyll in leaves. Pith, medullary ray and components of xylem and phloem also have parenchyma.Cells of this tissue have a central large vacuole and a peripherally located nucleus. 

Collenchyma tissues are mechanical plant tissues providing plants with support for vertical growth, like the better known, more commercially-common mechanical tissues of wood and fiber.they have axially elongated cells, varying from short isodiametric and prismatic cells, to long, fibre-like cells with tapering ends;

Sclerenchyma, in plants, support tissue composed of any of various kinds of hard woody cells. Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin. The cells are rigid and nonstretchable and are usually found in nongrowing regions of plant bodies, such as the bark or mature stems. Sclerenchyma is one of the three types of ground, or fundamental, tissue in plants; the other two types are parenchyma (living thin-walled tissue) and collenchyma (living support tissue with irregular walls). Sclerenchyma cells occur in many different shapes and sizes, but two main types occur: fibres and sclereids.

Answer 2

Answer:

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