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Assertion: In the human renal system, the kidneys possess the capability to produce urine that is approximately four times more concentrated than the initial filtrate formed.
Reason: The existence of a counter-current mechanism aids in the maintenance of a concentration gradient within the medullary interstitium.
Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
Assertion is True but the Reason is False.
Both Assertion & Reason are false.
Answers (1)
The assertion states that in the human renal system, the kidneys are capable of producing urine that is approximately four times more concentrated than the initial filtrate formed. This statement is true. The kidneys have the ability to regulate the concentration of urine by reabsorbing water and solutes as needed resulting in a concentrated urine output.
The reason given is that the existence of a counter-current mechanism aids in maintaining a concentration gradient within the medullary interstitium. This is also true. The counter-current mechanism refers to the flow of fluid in opposite directions in the loop of Henle, which creates a concentration gradient in the medullary interstitium. This gradient allows for the reabsorption of water and solutes, contributing to the concentration of urine.
Therefore, option 1 accurately states that both the assertion and the reason are true, and the reason provides a correct explanation for the observed phenomenon.
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