Q. No.Find the correct one.
(1) All the solutes have lower water potential than pure water given that solution is under external pressure
(2) All the solutions have lower water potential than the pure water
(3) All the solutions have higher water potential than the pure water
(4) All the solutions have lower water potential than pure water unless solution is under such external pressure which is more than the solute potential
(1) All the solutes have lower water potential than pure water given that solution is under external pressure
(2) All the solutions have lower water potential than the pure water
(3) All the solutions have higher water potential than the pure water
(4) All the solutions have lower water potential than pure water unless solution is under such external pressure which is more than the solute potential
Solute potential is
(1) More when solute is more
(2) Less when solute is less
(3) Always negative
(4) All of these
For a solution at atmospheric pressure
(1) Solute potential is more than water potential
(2) Water potential more than solute potential
(3) Solute potential is less than water potential
(4) Water potential is equal to solute potential
Plants have
(1) Positive water potential when cells get turgor pressure
(2) Negative water potential when water is transported up a stem
(3) Negative pressure is developed in the cell dure to turgor pressure
(4) Both A and B
If the cell gets water from surroundings, now a certain pressure develops inside it against the wall is called as
(1) Turgor pressure
(2) Wall pressure
(3) Osmotic Pressure
(4) Solute pressure
In plant cell
(1) Solute potential is contributed by cytoplasm
(2) Solute potential is contributed by cytoplasm and as well as vacuolar sap
(3) Solute potential is because of vacuolar sap only
(4) Solute potential is caused by nucleoplasm
In plant cell, which of the following is important determinants of movement of molecules in or out of the cell?
(1) Cell wall
(2) Cell membrane
(3) Tonoplast
(4) Both B and C
Osmosis
(1) Diffusion of water across a differentially or selectively permeable membrane
(2) Diffusion of water across a semipermeable membrane
(3) Diffusion of water across a freely permeable membrane
(4) Both A and B
The net direction and rate of osmosis depends upon
(1) Pressure gradient
(2) Concentration gradient
(3) Chemical potential
(4) All of these
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