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Seeds when kept in water swell up and burst their seed coat.How? Please answer fast

its due to the bursting of cell wall seed coat doesn't burst actually but due to HYPOTHERMIC SOL. it swells and when it swells up and cell wall cant resist it results in bursting.
thank you i hope you are cleared .
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Water enters the seeds when soaked in it for long time. This process of entry of water into the soaked seeds is called as imbibition. Thi imbibition develops large pressure called as imbibition pressure.This imbibition pressure makes the seedlings penetrate the seed coat and germinate out of it.
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Hbjj
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Due to endosmosis.The concentration of water outside the seed is higher than the concentration of water inside the seed.Hence, endosmosis occurs and the seeds swell and
burst their seed coats
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