Water 

Which one is wrong for Water. 

1. Provides a medium in which different substances are dissolved 

2. Makes 92% part of watermelon 

3. Makes 30-45% part of most herbaceous plants 

4. Present in dry seeds as well 

 

Subtopic:  Plant Water Relations: Water Potential: DPD |
 76%
From NCERT
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Transpiration 

1. Loss of water in soil 

2. Loss of minerals in soil 

3. Loss of water to the air from the leaves 

4. Loss of organic substances because of photorespiration 

Subtopic:  Transpiration & Guttation |
 92%
From NCERT
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 A mature corn plant absorbs…….. of water in a day while a mustard plant absorbs water equal to its own weight in about…….. 

1. 5L, 3 hours 

2. 3L, 5 hours 

3. 5L, 5 hours 

4. 3L, 3 hours 

Subtopic:  Plant Water Relations: Water Potential: DPD |
 67%
From NCERT
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Water is often a major limiting factor in

1. Photosynthesis

2. Respiration

3. Photorespiration

4. Plant Growth and Productivity

Subtopic:  Plant Water Relations: Water Potential: DPD |
 58%
From NCERT
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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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