Q. No.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
(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
Apply concept of water potential and osmosis
In which direction will osmosis occur?
(1) From A to B
(2) From B to A
(3) No net osmosis
(4) Cannot be predicted
Apply concept of water potential and osmosis
Which chamber has lower solute potential at equilibrium?
(1) Chamber A
(2) Chamber B
(3) Both will have equal values
(4) Cannot be predicted
Apply concept of water potential and osmosis
If B chamber has water potential of -2000 kPa and the A has water potential of -1000kPa, which is the chamber that has the highest Water potential?
(1) Chamber A
(2) Chamber B
(3) Both will have equal values
(4) Cannot be predicted
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