If cohesion-tension transpiration theory is correct then a break in water column in xylem vessels :

1. should cause the mesophyll cells to become flaccid and result in wilting of leaves.

2. should increase the water contents of leaves

3. shouls have no effect at all

4. should increase the rate of photosynthesis.

Subtopic:  Ascent of Sap |
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NEET 2022 - Target Batch - Aryan Raj Singh

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Which one is not related to transpiration?

1. Bleeding

2. Circulation of water

3. Absorption and distribution of mineral salts

4. Regulation of plant body temperature.

Subtopic:  Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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A plasmolysed cell can be deplasmolysed by placing it in :

1. Pure water or hypotonic solution

2. Hypertonic solution

3. Isotonic solution

4, Saturated solution

Subtopic:  Plasmolysis |
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Please attempt this question first.

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If alcohol treated cell is kept in hypertonic solution it:

1. Bursts

2. Plasmolysed

3. Remains same

4. None

To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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The loss of water through cuticle may reach upto :

1. 5%

2. 10%

3. 20%

4. 40%

Subtopic:  Transpiration & Guttation |
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NEET 2022 - Target Batch - Aryan Raj Singh

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Dry wooden stakes if driven into a small crack in a rock and then soacked, can develop enough pressure to split the rock. Such a pressure is built up through the phenomenon of :

1. Imbition

2. Butteress roots

3. Prop roots

4. Turgor pressure

Subtopic:  Imbibition |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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The cohesive force existing between molecules of water is contributing to :

1. ascent of sap

2. translocation

3. plasmolysis

4. osmosis.

Subtopic:  Ascent of Sap |
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Please attempt this question first.

Difficulty Level:


To initiate cell plasmolysis, the salt concentration must be :

1. isotonic

2. hypertonic

3. hypotonic

4. atonic

Subtopic:  Plant Water Relations: Plasmolysis |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Ascent of sap is mainly attributed to :

1. cohesion force

2. imbibition

3. root pressure

4. capillarity

Subtopic:  Ascent of Sap |
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Please attempt this question first.

Difficulty Level:


Solution concentration is higher in the external solution. The solution is

1. Isotonic

2. Hypotonic

3. Hypertonic

4. None of the above.

Subtopic:  Plant Water Relations: Plasmolysis |
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Please attempt this question first.

Difficulty Level: