It is concluded that when two solutions of different concentration are seprates by semipermeable membrane the flow of of weak solvent is from the region of weak solution having low solute concentration to the region of strong solution having high solute concentration till the equilibrium is reached.
1. Potato is used to prepare an osmoscope- justify.
Ans :- Demonstration of osmosis in living system can be using potato osmoscope potato is peeled and side is flattened which serves as the base this proves the entry of water into the sugar solution through potato tissues which serves the selectively permeable membrane.
2. Define permeability.
Ans :- The ability of a membrane to permit passage of Substance is called as permeability..
3. Define osmotic pressure.
Ans :- osmatic pressure of a solution is the pressure..... which must be applied to an solution in order to prevent. The entery of the Solvent due to osmosis.
4. Do you find any role of osmosis in water purification?
Ans :- Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water.
5. Osmosis plays important role in stomatal movement, explain.
Ans :- Reverse osmosis-opening & closing of stomata cell of guard id cells. cells during day time guard cells become turgid due to endosmosis & during night time guard cells becomes flaccid due to exosmosis.
1. In living cells, an osmosis specifically refers to the movement of___________.
Ans :- c. diffusion of water
2. The direction and rate of osmosis is controlled by__________.
Ans :- c. pressure gradient and concentration gradient
3. The structure that contributes to the solute potential of a cell is__________.
Ans :- d. solute particles
4. Osmotic potential refers to__________.
Ans :- a. movement of water molecules from hypotonic solution to hypertonic solution
5. Which of the following is not semipermeable?
Ans :- d. cell wall
6. Which acid is used to extract egg membrane?
Ans :- a. acetic acid
