When red blood cells are put into pure water they burst (haemolysis).
Which statements explain this haemolysis?
1 The water potential of the surrounding liquid is lower than the water potential of the contents of the red blood cell.
2 The cell surface membranes of red blood cells are not supported by cell walls.
3 More water moves into the red blood cells by osmosis than leaves the cells.
4 Water enters the red blood cells by osmosis but does not leave the cells.
1 )
1 and 3
2 )
1 and 4
2 and 3
4 )
2 and 4
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