Question

Why do humans not have a cell wall?

Answer 1

Cell wall:

1. The cell wall is the outermost covering of bacteria and plant cells.
2. Plant cell needs cell wall because it gives plant cells their shapes and allows them to expand so they can receive a lot of sunlight to produce their food.
3. Also, it makes plant cells rigid.
4. If an animal cell had a cell wall, it would prevent it from performing all of its regular tasks, such as running, eating, or performing any other tasks that are as necessary because a cell wall would stiffen the animal cell and prevent it from performing any of these tasks.
5. All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.
6. A semipermeable lipid bilayer makes up the cell membrane.
7. The movement of materials into and out of the cell is controlled by the cell membrane.
8. However, in animals, bones, and exoskeletons (Arthropods) support the body.