Why are gradients important in di usion and osmosis

How does diffusion differ from endocytosis and exocytosis? How does diffusion affect homeostasis? How are diffusion and osmosis different? How is diffusion involved in osmosis? How is facilitated diffusion different from active transport? What are common mistakes students make with facilitated diffusion?

What are some examples of facilitated diffusion? What are some examples of diffusion? Jun 12, They allow for the movement of molecules without the active expenditure of energy. Explanation: Molecules naturally want to go from an area of high concentration to an area of low concentration. Related questions How does polarity of molecules affect diffusion?

How does diffusion differ from endocytosis and exocytosis? How does diffusion affect homeostasis? How are diffusion and osmosis different? And so if you let some time pass, then they become more uniformly spread across a container. They have moved down their concentration gradient to make things more uniform. Now, what's interesting about this diagram is I've introduced a second particle, these big yellow particles.

And we see that their concentration gradient is going in the other direction. So we have a low concentration, in fact we have no, on the left-hand, we have none of the yellow particles on the left-hand side, and we have a high concentration on the right-hand side. So their concentration gradient goes from right to left. And the whole point of this video is to show that each particle moves down its unique concentration gradient, assuming that it's not blocked in some way, it's going to move down its unique concentration gradient irrespective of what the other particles are going to do, for the most part.

And so we see the yellow particles are going to move from high concentration, to low concentration. They're going to move, they're going to diffuse from right to left.

And once again, there's no magic here. It's not like this molecule is saying, oh, I've got seven other of my friends here, it's getting too crowded, I see them, I'm claustrophobic, let me move over to the left-hand side. That's not what's going on. They're just all randomly bouncing around and when you're in the starting position, when you're exactly like this, there's no probability because of a yellow particle moving from left to right, because there aren't any yellow particles here.