Answers

2014-06-14T18:30:24+05:30
The main purpose of the plasma membrane is to provide a barrier that keeps cellular components inside the cell while simultaneously keeping unwanted substances from entering the cell. The membrane allows essential nutrients to be transported into the cell and aids in the removal of waste products from the cell. The specific functions of a membrane depend on the kinds of phospholipids and proteins present in the plasma membrane.

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WHY
2014-06-14T19:40:42+05:30
Plasma membrane is a door way of cell it pushes out unwanted substance inside the cell.and nutrients etc to inside the cell.
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