Question

since the cell membrane allows some molecules to pass through it and will not allow others, it can be described as
multiple choice
completely pervious.
impermeable.
selectively permeable.
impervious.
permeable.

Explanation:

The cell membrane allows certain molecules to pass through while restricting others. This property is defined as selective permeability. A completely pervious membrane would allow all molecules through, an impermeable or impervious membrane would allow none, and a simple permeable membrane does not imply selectivity.

Answer:

C. selectively permeable