<span>Sodium channels close when not occupied
</span><span>Sodium ions diffuse through and enter the cell.
</span>
Then they leave the cell.
The sodium diverts in the cell layer have receptor locales for acetylcholine.
number 2
number 2 because the colour doesnt matter
The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
Answer:no it would be a flood
Explanation:
<span>: a medieval drama based on episodes from the life of a saint or martyr.
2 : mystery </span>play<span>.</span>
