Question

question 1 of 10 what is meant by the following statement about the cell membrane? the cell membrane is said to be semipermeable. a. it does not contain any membrane proteins. b. it is very selective about what it allows to pass through. c. it allows all polar molecules into the cell. d. it will not allow any molecules to pass through.

Explanation:

A semi - permeable cell membrane has the property of being selective. It controls the movement of substances in and out of the cell, allowing some molecules to pass while restricting others. It is not non - existent (A is wrong), does not allow all polar molecules (C is wrong as selectivity exists for polar molecules too), and does allow certain molecules to pass (D is wrong).

Answer:

B. It is very selective about what it allows to pass through.