Question
What is the difference between plasma membrane and cell wall? Give the functions of each one.
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Answer
Plasma membrane | Cell Wall | ||
1. | It is a thin, elastic and delicate living membrane. | 1. | It is rigid and non-living outer covering of the plant cell. |
2. | It is made up of lipids and proteins. | 2. | It is mainly made up of cellulose. |
3. | It is present in both plant and animal cells. | 3. | It is present only in plant cells. |
4. | Its major function is to hold cellular contents and control passage of materials in and out of the cell. | 4. | Its major function is to provide protection and strength to the cell. |
- Plasma membrane is a selective permeable membrane which allows or permits the entry and exit of some materials in and out of the cell.
- Cell wall provides rigidity and protection to cell. It is permeable.
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