Question

defined plasma membrane ??





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Answer 1

Answer:

All living cells are bound by a membrane called plasma membrane or cell membrane.

Answer 2

Explanation:

this is the outermost covering of the cell that separates the contents of the cell from its external environment. the plasma membrane allows or permits the entry and exit of some material in and out of the cell. it also prevent movement of some other materials. the cell membrane, therefore, is called a selectively permeable membrane.