Ldk how i can solve this for you
Answer:
<em>4) Active transport.</em><em> (hope this helps)</em>
Explanation:
In this process, dissolved molecules move across plasma membrane from a lower to higher concentration.... because they move against the concentration gradient, an energy from the cell is required.
Answer:
what is an example of a cell membrane?
Explanation:
It is the protective layer around a skin cell
