breifly describe the structure and function of cell wall
Answers
Answer:
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.
The plant cell wall is generally arranged in 3 layers and composed of carbohydrates, like pectin, cellulose, hemicellulose and other smaller amounts of minerals, which form a network along with structural proteins to form the cell wall. The three major layers are:
Primary Cell Wall
The Middle Lamella
The Secondary Cell
The cell wall is an integral component of the plant cell and it performs many essential functions. Following are some of the major cell wall functions observed:
The plant cell wall provides definite shape, strength, rigidity
It also provides protection against mechanical stress and physical shocks
It helps to control cell expansion due to the intake of water
Also helps in preventing water loss from the cell
It is responsible for transporting substances between and across the cell
It acts as a barrier between the interior cellular components and the external environment...
Answer:
cell wall
Explanation:
cell wall is outermost rigid protective and supportive layer found in all plant cell bacteria cyanobacteria and some protists .
structure of cell wall - 1 primary cell wall - it is outer thinner elastic and living coat present in the meristematic and parenchymatous cell.
2 secondary cell wall - It's lies inner to primary cell wall only in mature and dividing cells
The main function of cell wall is to protect cell .
2it provide mechanical shape of cell 3 it maintainshape of cell 4 it helps in cellular interactions 5 it export walls pressure towards inside to resist turgor pressure .