Rita placed a carrot in salty water. After sometime, she observed that the carrot shrivelled and became soft. Explain Rita's observation.
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All living cells have a membrane that allows the free movement of water but restricts the movement of solutes dissolved in the water. This membrane allows the cells to assimilate nutrients and excrete waste. It's easy to observe the effects of this movement, which is called osmosis, by immersing a carrot in saltwater. Because the concentration of salt is higher outside the carrot's skin, the carrot's cells lose water, and the carrot shrivels.
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