Question

explain walls in plant cell...

Answer 1

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Middle lamella:

It is thin and lies between two in

adjacent cells. It is the first structure formed tai

from cell plate during cytokinesis. It is mainly to

made up of pectin, calcium and magnesium ac

pectate. Softening of ripe fruit is due to

solubilization of pectin.

Primary wall :

In young plant cell, it is capable

of growth. It is laid inside to middle lamella.

It is the only wall seen in meristematic tissue,

mesophyll, pith, etc.

Secondary wall :

It is present inner to primary

wall. Once the growth of primary wall

stopps, secondary wall is laid. At some places

thickening is absent which leads to formation

of pits.ndoomata are cytoplasmic

Answer 2

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. ... The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicelluloses and pectin. Often, other polymers such as lignin, suberin or cutin are anchored to or embedded in plant cell walls.

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