Question

During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will (1 point)

move across the membrane to the outside of the cell.
stop moving across the membrane.

continue to move across the membrane in both directions.

move across the membrane to the inside of the cell.

Answer 1

Here are a couple of facts that'll help you out:

Molecules tend to move toward the side where there is a LOWER concentration.
A LOWER number of molecules.

If the number of molecules is lower on the RIGHT side,
then the molecules will tend to move toward the RIGHT.

And the molecules NEVER stop moving.
They never stop.

You get it?

Now....this question is telling us that the molecules on both sides is equal.

So, if the number of molecules on both sides is EQUAL,
and the molecules NEVER STOP moving,

which choice makes the most sense to you?

Answer 2

said a lot more compromized: the NET diffusion = 0

Answer 3

umm would it be a?

Answer 4

no no no c

Answer 5

Yeah C. lol.

Wonderful.

Answer 6

hahaha:p yeah sorry kinda...slow:p thanks for your your help(: and thanks for doing to help me understand instead of just giving me the answer(:

Answer 7

Sure, it's no problem. =)

Answer 8

As a minor bouns I can show you the math behind it:
\[J=-D \frac{ \partial \phi }{ \partial x }\]
Here J is the flux, D the diffusion coefficient, and the partial differentiated is the gradient of the concentration.

Answer 9

Yeah. Shoot me.

I heard Denmark's schooling system is really good.

Answer 10

geez math is just everywhere lol.

Answer 11

1. C
2. A
3. A
4. D