a thick, rigid membrane of cellulose fiber.
They both provide structure and protection
Cell walls.
Cell walls? Animal cells only have cell membranes. Plant and prokaryotic cells have cell walls, which provide the cell with added structure.
Cell walls provide the rigidity to plant cells. They are comprised mainly of cellulose.
Skeleton.
Cellulose is itself a carbohydrate, and provides structure in cell walls.
Sclerenchyma
The cell wall is similar to the outside walls of a house. They both provide structure for the inside.
No, there is no similarity in bacterial cell walls and plant cell walls. They are different morphologically and also in chemical composition; plant cell walls are made up of cellulose, whereas bacterial cell walls are made up of peptidoglycan (also known as murein).
Plants have cell walls made up of cellulose which function in the support and protection of the cell. Animals have only cell membranes made up of phospholipid bilayer and protein which protects and hold together the cell and its parts, it does not need to provide the support that plant cell was provide because animals have other forms of support ( i.e. exoskeletons and endoskeletons) and the lack of the cell wall allows for increased flexibility and advanced cell/tissue specialization, which plants cannot achieve. Bacterial cell walls are made up of peptidoglycan and provide support for the cells much like plant cell walls. United Nations Farms
Before answering this question, it is important to know the function of a cell wall. Cell walls are found in plants to provide rigidity to support the shape of the cell. Animals do not require those functions in cells, hence they do not need cell walls.