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