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Comment upon the following : Wilted le...

Comment upon the following :
Wilted lettuce becomes crisp/firm when placed in cold water for a while .

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Leaves of wilted lettuce are flaccid in nature due to the loss of water. When these leaves are kept in cold water, the water enters the cell making them turgid. Hence, they become crisp
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ICSE-SAMPLE QUESTION PAPER -5-SECTION-II
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  4. Gametes have a haploid number of chromosomes.

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