Answer: The red blood cell which is placed in a solution will shrink because of lower water concentration compared to their water contents, the blood cell will lose water by osmosis which causes water to leave the cell.
After a period of time, when red blood cell is placed in a hypertonic solution, the cell has shrunk to half its original size is true
Hypertonic solution refers to a solution that have a very high osmotic pressure than other solution. hypertonic solution is one it had a greater concentration or number of solute particles outside a membrane and lower concentration inside the cell membrane.
This cause the cell to shrink.
Therefore, After a period of time, when red blood cell is placed in a hypertonic solution, the cell has shrunk to half its original size is true.
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