Based on the figure given below which of the following statements is not correct?

Movement of solvent molecules will take place from chamber A to B

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Movement of solute also will take place from A to B

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Presence of a semipermeable membrane is a pre-requisite for this process to occur

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The direction and rate of osmosis depends on both the pressure gradient and concentration gradient

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Solution

The correct option is B Movement of solute also will take place from A to B
Solute cannot move across a semi-permeable membrane unless facilitated through channels or special carrier proteins. Therefore only B is incorrect.
All the other statements are true for osmosis- solvent molecule that is water moves from the region of higher water potential to the region of lower water potential. Osmotic movement is also dependent on pressure gradient.

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Similar questions

Q. Question 6
Following are a few definitions of osmosis. Read carefully and select the correct definition:

(a) Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
(b) Movement of solvent molecules from its higher concentration to lower concentration
(c) Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane
(d) Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane

Q. Which of the following statements is correct about diffusion and osmosis?
(i) In osmosis, a semipermeable membrane is used while diffusion is without membrane
(ii) In osmosis, movement of molecules occurs in one direction while in diffusion, movement occurs in all directions.
(iii) In osmosis, only the solvent moves while in diffusion both solute and solvent move

Q. Which of the following statements is/are correct about the given figure?

a) Water potential of chamber B is more negative
b) Diffusion of solute will take place from chamber B to chamber A
c) Diffusion of solvent will take place from chamber A to B
d) Osmotic pressure of chamber B is higher than chamber A

Which of the following statements is false?
(a) Units of atmospheric pressure and osmotic pressure are the same
(b) In reverse osmosis, solvent olecules move through a semipermeable membrane from a region of lower concentration of solute to a region of higher concentration.
(c) The value of molal depresiion constant depends on nature of solvent
(d) Relative lowering of vapour pressure, is a dimensionless quantity

Osmosis is the movement of _________ molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.

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