primary cell wall and secondary cell wall

A cell wall surrounds the plasma membrane in all plant cells. It is a porous covering of about 0.1 milli microns to 10 milli microns in size. The cell wall is chiefly composed of insoluble polysaccharides. The most common constituent is cellulose. C..

A cell wall is a characteristic feature of plant cells, bacteria and fungi. The composition however varies in different grou..

A cell wall is a characteristic feature of plant cells, bacteria and fungi. The composition however varies in different group..

The cell wall is present only in plant cells. It is made up of a complex polysaccharide (carbohydrate) called cellulose. Its function is to give strength and rigidity to the cell. It is non-living...

For an electrochemical cell to be used as a commercial cell it must 1. Be compact, light and rugged. 2. Voltage should not drop during u..

The cellwall of prokaryotes like bacteria is composed of peptidoglycans. Apart from maintaining the shape and size of plant cells, the cell wall is involved in some specific functions such as Protection against the attack of pathogens Providing mechanical support Allow..

The body wall is dermo muscular. It consists of a thin cuticle, and epidermis and musculature. The cuticle is an elastic non-cellular covering. Epidermis is represented by a layer of columnar epithelial cells, represented by supporting cells, glandular cells,..

The immune response due to first encounter with an antigen takes a longer time, feeble and declines rapidly. After the initial contact with an antigen, there is a period of several days during which no antibody is present, then there is a slow rise in the antibodies, followed by a gradual decline. ..

They are smaller cells associated with the sieve tubes. They have dense cytoplasm and elongated nucleus. It is in contact with the sieve tube cell through pores in the wall..

During this phase, the newly formed cells absorb water by osmosis resulting in the increased turgidity and expansion and dialation of the elastic cell wall. In the initial stages, the cell enlargement occurs in all directions but is later confined to a specif..