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 due to turgor pressure

4. Both 1 and 2

Subtopic:  Transpiration & Guttation |
 74%
From NCERT
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Cell wall is

1. Freelly permeable

2. Impermeable

3. Semipermeable

4. Selectively permeable

Subtopic:  Osmosis |
 67%
From NCERT
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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 2 and 3

Subtopic:  Osmosis |
 82%
From NCERT
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Osmosis

1. Diffusion of water across a differentially permeable membrane

2. Diffusion of water across a semipermeable membrane

3. Diffusion of water across a freely permeable membrane

4. Both 1 and 2

Subtopic:  Osmosis |
 60%
From NCERT
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The net direction and rate of osmosis depends upon

1. Pressure gradient

2. Concentration gradient

3. Chemical potential

4. All of these

Subtopic:  Osmosis |
 89%
From NCERT
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Apply concept of water potential and osmosis

Solution of which chamber has a lower solute potential?

(1) Chamber A

(2) Chamber B

(3) Both will have equal values

(4) Cannot be predicted

Subtopic:  Osmosis |
 61%
From NCERT
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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

Subtopic:  Osmosis |
 83%
From NCERT
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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

Subtopic:  Osmosis |
 60%
From NCERT
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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

Subtopic:  Osmosis |
 82%
From NCERT
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Apply concept of water potential and osmosis

If two solutions, A with water potential 0.2 MPa and B with water potential 0.1 MPa are separated by a selectively permeable membrane, then what will be the direction of movement of water?

(1) From A to B

(2) From B to A

(3) No net osmosis

(4) Cannot be predicted

Subtopic:  Osmosis |
 83%
From NCERT
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