write about plasma membrane
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A microscopic membrane of lipids and proteins which forms the external boundary of cytoplasm of a cell or encloses a vacuole and regulates the passage of molecules in and out of the cytoplasm..
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Plasma membrane also Know as cell membrane . It is the outer Most boundary of animal cell and inner to the plants Cell .
Chemical composition . Its composed of. Protein 60to 80% and lipid 20to40% and carbohydrate is present in Small amount . Size . 7Nm.
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