Which of the following statements is/are true regarding a cell membrane?
A
It is living.
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B
It is mainly composed of lipids and proteins.
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C
It is a semi-permeable membrane.
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D
None of these.
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Solution
The correct options are A It is living. B It is mainly composed of lipids and proteins. C It is a semi-permeable membrane. The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. It is living in nature and mainly composed of lipids and proteins.