The following points highlight the top seven functions of cell wall in the life of a plant. The functions are: 1. Gives Mechanical Strength 2. Maintains Cell Shape 3. Controls Cell Expansion 4. Controls Intercellular Transport 5. Protects Against Infective Organisms 6. Cell Wall has Signalling Device against Attack of Microorganism 7. Acts as a Reservoir of Food. Function # [...]
In this article we will discuss about the ultrastructure of cell wall in plants. This will also help you to draw the structure and diagram of cell wall. The cell wall is a biphasic structure consisting of cellulose microfibril embedded in gel-like non-cellulosic matrix. The microfibrillar phase consists of cellulose (β1, 4-glucan) only and the ultrastructure of cell wall is [...]
In this article we will discuss about the symmetry of pollen and spore wall of plants. The term symmetry with relation to a pollen grain implies similarity of halves on either side of a median line or plane so far as aperture and ornamentation etc., are concerned. Most pollen and spores are symmetrical. As a rule, symmetric pollen and spores [...]