Definition, Meaning & Synonyms
cell-wall
noun
/sɛl wɔːl/
Definition
A cell wall is a rigid layer that surrounds the cells of plants, fungi, bacteria, and some archaea, providing structural support and protection.
Examples
- Plant cells possess a strong cell wall made primarily of cellulose.
- The cell wall of bacteria can be targeted by certain antibiotics.
- Without a cell wall, protoplasts would be vulnerable to osmotic pressure.
Meaning
The term ‘cell wall’ refers specifically to the outer protective layer that gives the cell its shape and limits the amount of water that can enter, maintaining the cell’s integrity.
Synonyms
- cell membrane
- protective layer
- cell envelope
