3 years ago

The plasma membrane is _____. A) Permeable B) Semipermeable C) Rigid around D) The nucleus

2 answers:

6 0

The correct answer is B.

The cell membrane is a two-layer lipid membrane that surrounds and protects the cell. It allows only certain molecules to enter and leave the cell, that's why we call it semi-permeable. The membrane is permeable only for small,uncharged molecules which enter and leave in the process of osmosis. All other types of molecules require a special transport protein or a channel in order to be transported trough the cell membrane.

seropon [69]3 years ago

5 0

The plasma membrane is B. Semi permeable.

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