Stomata open is due to accumulation of
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Which of the following is the most accepted theory for movement of water through plants?
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Assertion:When dried seeds of pea are placed in a tin and water added up to their upper level and then a lid is put lightly over it. Within an hour, the lid will be blown off. Reason: Due to rapid cell division in pea seeds.
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Attraction of water molecules to polar surfaces is known as
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Which of the following is not a purpose of transpiration?
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When the conditions are dry, a grass leaf curls inward to minimize water loss due to presence of
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Guard cells help in
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Which one of the following denotes the water potential of the mesophyll cell in wilted condition?
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Identify the correct relationship with reference to water potential of a plant cell.
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The values osmotic potential π and pressure potential ρ of cells A, B, C and D are given below: Cell | π | ρ |
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Cell A | –1.0 | 0.5 | Cell B | –0.6 | 0.3 | Cell C | –1.2 | 0.6 | Cell D | –0.8 | 0.4 |
Identify the correct sequence that shows the path of movement of water from among the following:
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