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Assertion: Urine is an isotonic solution.

Reason: Urine has the same concentration of solutes as the blood plasma.



Option: 1

Assertion and reason are both true, and reason is an accurate account of assertion. 


Option: 2

Both assertion and reason are accurate, but reason does not adequately explain assertion.

Option: 3

The assertion is correct, but the reasoning is incorrect. 


Option: 4

Both the assertion and reason are incorrect.

Answers (1)


The assertion is not entirely true. Urine is a hypertonic solution, which means it has a higher concentration of solutes than the blood plasma. The reason is also not entirely true, as urine contains a higher concentration of waste products and other substances than the blood plasma. However, the concentration of certain solutes, such as sodium and potassium, may be similar in both urine and blood plasma.

Option d is the correct answer.


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