Question

Which of the following statements is true of the cell membrane?

1. it controls what molecules enter and exit the cell
II. it contains protein channels that help move molecules in and out
III. it surrounds all plant cells
o I only
o ll only
o III only
ol & ll only
o I & III only
O I, II, & III
Next
1 2 3 4 5 6 7 8 9 10

Answer 1

1, 2, & 3

Step-by-step explanation:

The cell membrane controls what enters and exits the cell and thus protects the cell.

Water molecules and ions move through channel proteins. Other ions or molecules are also carried across the cell membrane by carrier proteins.

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