Question

a cell swells up if
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Answer 1

Water molecules will move from a region of higher concentration to a region of lower concentration. Thus, if the cells are placed in a solution where the concentration of water is more outside, the cell will absorb water. It will help in imbibition of the cell and thus, cell will swell up.

Answer 2

Answer:

Water molecules will move from a region of higher concentration to a region of lower concentration.