Water molecules show a motion

(1) Random

(2) Rapid

(3) Constant

(4) All of these

Subtopic:  Water Potential Concept |
 63%
From NCERT
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Water potential is not

1. Denoted by Greek symbol psi

2. Expressed in pressure units such as Pascals (Pa)

3. At standard temperature not under any pressure, is taken zero

4. Always negative or zero

Subtopic:  Water Potential Concept |
 68%
From NCERT
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Find the correct one.

1. All the solutions have lower water potential than pure water given that solution is under external pressure.

2. All the solutions have lower water potential than pure water.

3. All the solutions have higher water potential than pure water.

4. All the solutions have lower water potential than pure water unless the solution is under such external pressure which is more than the solute potential.

Subtopic:  Water Potential Concept |
 52%
From NCERT
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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

Subtopic:  Osmosis |
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

The pressure applied in this experiment is

(1) Hydrostatic Pressure

(2) Colloidal pressure

(3) Osmotic pressure

(4) Pressure potential

Subtopic:  Osmosis |
 80%
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Isotonic solution is

(1) A solution which is more concentrated than the cytoplasm

(2) A solution which is more dilute than the cytoplasm

(3) A solution which balances the osmotic pressure of the cytoplasm

(4) A solution which is less dilute than the cytoplasm

Subtopic:  Plant Water Relations: Plasmolysis |
 94%
From NCERT
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Plasmolysis

Which one is incorrect.

(1) External solution is hypertonic

(2) Water moves out of the cell

(3) Cell membrane shrinks away from it's cell wall

(4) Firstly cell sap comes out then cytoplasmic water.

Subtopic:  Plant Water Relations: Plasmolysis |
 72%
From NCERT
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What occupies the space between the cell wall and the shrunken protoplast in the plasmolysed cell?

(1) Hypertonic solution

(2) Hypotonic solution

(3) Water

(4) Cytoplasmic content

Subtopic:  Plant Water Relations: Plasmolysis |
 72%
From NCERT
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