Which of the following is true with respect to diffusion and not osmosis?

Movement of solid, liquid and gas

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Movement of solvent only.

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Movement of water across a membrane

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Movement molecules need not involve a membrane.

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Solution

The correct options are
A Movement of solid, liquid and gas
D Movement molecules need not involve a membrane.
Diffusion can occur in all states of matter: solids, liquids and gases. It is more obvious in liquids and gases but hardly in solids. This process does not involve the movement of the molecules across a membrane. Osmosis is a phenomenon where water flows from a dilute solution through a semi-permeable membrane to a higher concentrated solution.

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Similar questions

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

Which of the following statements are wrong?
(i) The mass flow of substances inside the plant is the result of pressure differences between the two points
(ii) Diffusion cannot account for long distance movement of water and solutes in plants
(iii) Movement through apoplast does not involve crossing the cell membrane
(iv) The movement of water through endodermis is only through symplast

Q. Which of the following statements are wrong?
(i) Mass flow of substances inside the plant is the result of pressure differences between the two points
(ii) Diffusion cannot account for long distance movement of water and solutes in plants
(iii) Movement through apoplast does not involve crossing the cell membrane
(iv) The movement of water through endodermis is only through symplast

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

___ is the phenomenon of diffusion of solvent molecules across a semi-permeable membrane.

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