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Elisha · Answer 1 · 2020-09-15T20:59:55+0000

Answer:

The cell-membrane or plasma membrane surrounds nucleus and cytoplasm in all types of cells. However in bacteria and plants,plasma membrane itself is surrounded by a cell-wall.It can repair itself to some extent.Different models have been presented to understand the structure of cell membrane.

Step-by-step explanation:

Michael Legart · Answer 2 · 2020-09-17T23:38:05+0000

The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.

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