Question

write down composition and function of primary and secondary cell wall (for 11 class) in easy wording short answer​

Answer 1

Answer:

Primary cell walls are composed of polysaccharides, smaller proportions of glycoproteins and, in some specialized cell-types, various noncarbohydrate substances such as lignin, suberin, cutin, cutan or silica. Wall polysaccharides fall into three categories: pectins, hemicelluloses and cellulose.

Abstract. Secondary walls are mainly composed of cellulose, hemicelluloses (xylan and glucomannan) and lignin, and are deposited in some specialized cells, such as tracheary elements, fibers and other sclerenchymatous cells.

Answer 2

Answer:

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Explanation:

The primary wall is the cellulose-containing layer laid down by cells that are dividing and growing. To allow for cell wall expansion during growth, primary walls are thinner… Secondary cell walls are responsible for most of the plant's mechanical support as well as the mechanical properties prized in wood.