In which form does the food transport in plants? 
1. Sucrose
2. Fructose
3. Glucose 
4. Lactose

Subtopic:  The Pressure Flow or Mass Flow Hypothesis |
 77%
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The osmotic pressure of a solution is:
1. greater than pure solvent 
2. less than pure solvent 
3. equal to pure solvent 
4. less than or greater than pure solvent
Subtopic:  Osmosis |
From NCERT
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Most accepted theory for ascent of sap is? 
1. capillary theory 
2. root pressure theory 
3. pulsation theory
4. transpiration pull 
Subtopic:  Ascent of Sap |
 66%
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In plants, water supply is due to?
1. osmosis 
2. imbibition 
3. guttation 
4. adhesion force 
Subtopic:  Osmosis |
From NCERT
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What is the primary form of sugar that is transported from the site of photosynthesis to the rest of the plant?
1. glyceraldehyde 3-phosphate
2. glucose
3. ribulose 1,5-bisphosphate
4. sucrose
Subtopic:  Phloem Translocation |
 62%
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Stomata in angiosperms open and close due to:
1. Their genetic constitution
2. Effect of hormone
3. Changes of turgor pressure in guard cells
4. Pressure of gases inside the leaves
Subtopic:  Stomata |
 81%
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Cell placed in hypertonic solution is shown by?
1.   2.
3. 4. Both (1) and (3)

 
Subtopic:  Plasmolysis |
 84%
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Cell placed in hypertonic solution is shown by:
1.   2.
3. 4. Both (a) and (b)


 
Subtopic:  Plasmolysis |
 76%
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Unloading of sucrose from phloem to sink
1. Decreases osmotic pressure in phloem
2. Make phloem hypertonic
3. Increases the osmotic pressure in phloem
4. Lead to influx of water into phloem
 
Subtopic:  The Pressure Flow or Mass Flow Hypothesis |
 61%
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Chloroplasts can move within cytoplasm with the help of
1. Apoplastic movement
2. Cytoplasmic streaming
3. Plasmodesmata
4. Turgor pressure
Subtopic:  Water Absorption |
 74%
From NCERT
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