Consider the following statements with reference to plasma membrane 1 It is the outermost covering o...........

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Consider the following statements with reference to plasma membrane:

1. It is the outermost covering of the cell that separates the contents of the cell from its external environment.

2. It is allows the entry and exit of some materials in and out of the cell.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment. Cell membrane is consisted of a lipid bilayer, including cholesterols that sit between phospholipids to maintain their fluidity under various temperature, in combination with proteins such as integral proteins, and peripheral proteins that go across inside and outside of the membrane serving as membrane transporter, and loosely attached to the outer side of the cell membrane acting as several kinds of enzymes shaping the cell, respectively.