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From Simple English Wikipedia, the free encyclopedia
plant cell middle lamella

A cell wall is the wall of a cell in plants, bacteria, fungi, algae, and some archaea. Animal cells do not have cell walls, nor do protozoa. Cell walls protect the cells from damage. It is also there to make the cell strong, to keep its shape, and to control the growing of the cell and plant. The cell wall is the tough, usually flexible but sometimes fairly rigid layer that surrounds some types of cells. It is outside the cell membrane and gives these cells support and protection, as well as acting as a filter. The cell wall also acts as a pressure vessel, preventing over-expansion when water enters the cell by osmosis. The material in the cell wall varies. In plants and algae, the cell wall is made of long molecules of cellulose, pectin and hemicellulose. The cell wall has channels which let some proteins in and keeps others out. Water and small molecules can go through the cell wall and the cell membrane.

what is Middle lamella?[change | change source]

As we know we need cement to join two bricks same thing can be compared with middle lamella.middle lamella give cell shape, support and strenght.middle lamella is made up of calcium and magnesium.from the name we think that it will be in the middle but it is not in middle but it is the outer part of cell.middle lamella is the first wall of cell to give protection.

More about plant cell wall:-[change | change source]

As plant cell have middle lamella [1]animal cell does not have cell wall they have micro filament.plant cell have four Protecting layer first is middle lamella second is primary cell wall third is secondary cell wall and fourth is tertiary cell wall.middle lamella store magnesium,so middle lamella play very important role in plant cell.

  1. "scitable". Retrieved 5-26-2016. {{cite web}}: Check date values in: |accessdate= (help)