Question

What regulates the movement of substances into and out of the cell?

Answer 1

The cell membrane regulates movement of materials into and out of cells.

Explanation:

Materials can move into or out of cells by either passive or active transport.

Examples of passive transport include: diffusion, osmosis and facilitated diffusion.

Examples of active transport include: protein pumps (Na-K pump), endocytosis and exocytosis.

Here are some videos to help:

Facilitated diffusion:

Osmosis:

Overview of all types of transport:

Hope this helps!