Question

Will water travel across the membrane? Why or Why not?

Answer 1

if you mean a phospholipid bilayer then no the water cannot diffuse across the membrane

Answer 2

it cant?

Answer 3

lipids repel the water

Answer 4

um....i found this in the wikipedia

Water molecules travel through the plasma cell wall, tonoplast or protoplast in two ways, either by diffusing across the phospholipid bilayer directly, or via aquaporins. Osmosis provides the primary means by which water is transported into and out of cells. The turgor pressure of a cell is largely maintained by osmosis, across the cell membrane, between the cell interior and its relatively hypotonic environment.

Answer 5

turgur pressure normally concerns a blood cell not your ave cell.

Answer 6

so the answer is? if you mean a phospholipid bilayer then no the water cannot diffuse across the membrane.lipids repel the water.Turgur pressure normally concerns a blood cell not your ave cell.

Answer 7

what is the question?

Answer 8

Will water travel across the membrane? Why or Why not?

Answer 9

what membrane? what are you studying? what is the class? all important info

Answer 10

permeable membrane. Biology and chemistry i think..... idk cause i am helping my mother

Answer 11

well my best advice is read the book. if it says permeable membrane its probly talking about a blood cell. in which the water must diffuse into or out of the cell depending on the solution its in. either hypotonic, isotonic, or hypertonic

Answer 12

hmm ill just scan the worksheet and show it to you

Answer 13

this is the question the 1. one

Answer 14

OOO. No the solute will travel down the concentration gradient.. that is to the lower concentration. The amount of water is equal in each solution so no it will not cross the membrane unless there is a decrease in osmotic pressure, or if the membrane is impermeable to the solute.

Answer 15

ok thanks dude that was really a nice help for me!!!!

Answer 16

because the volume is equal on both sides but the concentration of solution is not, the concentration diffuses toward the side of lower concentration until the concetrations are equal.
with question 2 its the same thing. solute 1 circle will difuse across until both sides are equal. and solute 2 square will do the same.

Answer 17

so whats the answer for the second Question?

Answer 18

the water level still doesnt change, so water doesnt move across membrane. Two squares diffuse left. and however many circles move to the right until the number of circles are even on both sides

Answer 19

Yes, the water level doesn't change because all of the solutes are capable of crossing the plasma membrane. If you have a look at this: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html
it has a really good explanation as to how osmosis works.