Question

What is meant by the following statement about the cell membrane?
The cell membrane is said to be semipermeable.

A. It will not allow small molecules to pass through
B. it allows all nonpolar molecules into the cell
C. It does not contain any enzymes
D. It allows only certain molecules to pass through

Answer 1

Answer:

B

Explanation:

Cell membranes allow ALL substances to pass through easily

It is selectively permeable so only certain molecules can pass through it.

It acts more like a fluid than a solid because its molecules constantly moving.

Cell membranes surround all animal, plant, and bacterial cells.

It is a bilayer composed mainly of phospholipids and proteins

Answer 2

Answer:

D

Explanation:

It allows only certain molecules to pass through