Question

do substances that are moving in and out of a cell diffusion and osmosis stop moving once the substances are evently distributed on either side of the membrane? explain your reasoning

Answer 1

So substances move only when there is a concentration gradient - that is, a difference in concentration between the inside of the cell and the outside. So with that hint, can you answer the question?

Answer 2

yes i thinks so ...... the substances will be stop moving once the substance are evently distributed on either side of the membrane because therethere is no net movement of water ....right?

Answer 3

Yes, exactly. Well done!

Answer 4

that was really easy like you said

Answer 5

thank you for your help i really appreciated it

Answer 6

Sure, you're very welcome. Have a good one!

Answer 7

I thought that water still moves back and forth even though it is at equalibrium? The concentration stays the same but it does not just stop moving though.

Answer 8

Pooldaddy is right, they absolutely do. But the observed concentrations don't change because rate of flow into the cell equals the rate of flow out of it.

Answer 9

I guess I am learning something in Biology then... Yea! Thanks Blue.