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Question

Plasma membrane is mainly composed of:

A
Lipids
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B
Proteins
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C
Chitin
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D
Peptidoglycan
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E
Cellulose
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Solution

The correct option is B Proteins

Plasma membrane is a selectively permeable membrane. It covers the cytoplasm. It is made up of a phospholipid bilayer with protein molecules embedded in it. It also consists of carbohydrates and water. The ratio of proteins to lipids varies in different membranes.


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