briefly describe the structure and function of cell wall?
Answers
Answer:
Cell wall:
It is a characteristics of plant cell only and absent in animal cell. It is an outer, rigid, protective, supportive and freely permeable covering of plant cells. The cell wall lies outside of the plasma membrane. It determines the shape of a plant cell and prevents desiccation of cells. It is mainly composed up of mainly cellulose. Cellulose is a complex substance and provides mechanical and structural strength to plants.
Function of cell wall:
(i) Cell wall provides shape and rigidity to the cell.
(ii) It protects plasma membrane and internal structures from the attach of pathogens and mechanical injury.
Answer:
Plant Cell Wall Structure
The cell wall is the outer covering of a cell, present adjacent to the cell membrane, which is also called the plasma membrane. As mentioned earlier, the cell wall is present in all plant cells, fungi, bacteria, algae, and some archaea. An animal cell is irregular in their shape and this is mainly due to the lack of cell wall in their cells. The compositions of the cell wall usually vary along with organisms.
It is responsible for transporting substances between and across the cell.
Also helps in preventing water loss from the cell.
helps to control cell expansion due to the intake of water.
The plant cell wall provides definite shape, strength, rigidity
acts as a barrier between the interior cellular components and the external environment