Which is an incorrect statement.

1. Translocation of minerals up the xylem is an active process

2. The target cells unload the minerals by an active process

3. The absorption of minerals by plants is mostly an active process

4. Minerals usually flow up the vessels along with the transpiration stream.

Subtopic:  Water Absorption |
 58%
From NCERT
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A structural attribute of guard cells that aid in its effective functioning is

1. Large cell size

2. Radial micellation in walls

3. Thick walls

4. All of the above

Subtopic:  Transpiration Pull: Illustration |
From NCERT
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Continuity of protoplasm in sieve elements is maintained through

1. Cytoplasmic strands

2. P proteins

3. Vacuoles

4. Walls

Subtopic:  Phloem Translocation |
 76%
From NCERT
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Mass flow seems to be the prominent mode of transport during

1. Translocation of organic solutes within phloem.

2. translocation of water and minerals in xylem

3. Apolplastic movement of water in plants

4. All of the above

Subtopic:  Phloem Translocation |
 72%
From NCERT
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Which is not an example of imbibition

1.Raisins soaked in water 

2. Wheat grains soaked in water

3. Gram seeds soaked in water

4. A piece of wood soaked in water.

Subtopic:  Imbibition |
 65%
From NCERT
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When the cell is flaccid

1. Inflow and outflow of water is in equilibrium

2. Turgor pressure of the cell is 0

3. placed in isotonic solution

4. All of the above.

Subtopic:  Plant Water Relations: Plasmolysis |
 82%
From NCERT
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About _______________ % of the water taken in by roots is lost by transpiration.

1. 100

2. 98

3. 90

4. 60

Subtopic:  Transpiration & Guttation |
 73%
From NCERT
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Loss of solutes from a cell leads to

1. Increase in water potential

2. Decrease in solute potential

3. Increase in pressure potential

4. All of the above

Subtopic:  Plant Water Relations: Water Potential: 2 | Plant Water Relations: Water Potential: DPD | Plant Water Relations: Reverse Osmosis & Water Potential |
 54%
From NCERT
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What is never zero in a cell-

1. Solute potential

2. Water potential

3. DPD

4. Diffusion pressure

Subtopic:  Plant Water Relations: Reverse Osmosis & Water potential: 1 | Plant Water Relations: Reverse Osmosis & Water Potential |
 55%
From NCERT
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The process responsible for the movement of water from roots to all other parts of plants is

1. Evaporation of Water from leaves 

2. Capillary action 

3. Active transport 

4. Both 1 and 2

Subtopic:  Ascent of Sap |
 78%
From NCERT
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