Question

Do animal cells have a cell wall?

Answer 1

Cell wall:

1. It is a rigid, external layer, which is mainly designed to provide rigidity and structural support.
2. It helps in keeping the internal constituents of the cell safe and intact.
3. The cell wall is present only in plants and some other organisms, not in animals.
4. The main objective of the cell wall in plants is to offer structural support and a permeable surface via which molecules can move inside and outside of the cell.
5. The cell wall is made up of three layers, that is, the primary cell wall, the secondary cell wall, and the middle lamella.
6. In plants, the cell wall is formed of cellulose microfibrils.
7. Apart from plants, some the species like bacteria and fungi also comprise cell walls.
8. In bacteria, the cell wall is formed of peptidoglycan, and in fungi, it is formed of chitin, that is, a complex carbohydrate.