Question

write about plasma membrane?​

Answer 1

Answer:

All cells are surrounded by a plasma membrane. The membrane is composed of a phospholipid bilayer arranged back-to-back. The membrane is also covered in places with cholesterol molecules and proteins. The plasma membrane is selectively permeable and regulates which molecules are allowed to enter and exit the cell..

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Answer 2

Explanation:

plasma membrane permits the entry and exit of some material in the cell therofore the plasma membrane is called selectively permeable membrane. it is composed of lipids and proteins.