Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: If red blood cells were removed from the body and placed in pure water, pressure inside the cells increases. Reason: The concentration of salt content in the cells increases.A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but the reason is not the correct explanation of the assertion.
C) If assertion is true statement but reason is false.
D) If both assertion and reason are false.
Correct Answer: C
Solution :
When a solution is separated from the pure solvent by means of a semi permeable membrane, the pure solvent passes through the membrane and goes to solution and a hydrostatic pressure is set up which is called ,as the osmotic pressure of the solution. So when red blood cells were placed in pure water, the concentration, of water is increase in the cell due to osmosis and the concentration of salt content would increase in the solution, or decrease in cell so the assertion is true but reason is false.
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