Concentration gradient is a different in concentration between two areas
If the membrane allowed anything and everything to pass through, and since particles diffuse to have an equilibrium, the concentration inside the cell would eventually be the same as the concentration outside the cell
Since there is no difference, there is no gradient
If the membrane is selectively permeable, it can actively transport things, or only allow certain things to diffuse to a certain extent
It monitors what enters and exits the cell, ensuring the cell is not the same as the environment
Since there is a difference, there is a gradient
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment