URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Along the descending limb of the nephron loop (loop of Henle) ____ is reabsorbed while along the ascending limb of the nephron loop ____ is reabsorbed.
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water ____ urea
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salt ____ water
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water ____ salt
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urea ____ water
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Explanation:
Detailed explanation-1: -The descending portion of the loop of Henle is extremely permeable to water and is less permeable to ions, therefore water is easily reabsorbed here and solutes are not readily reabsorbed.
Detailed explanation-2: -The descending limb of the loop of Henle is permeable to water but impermeable to electrolytes and this concentrates the filtrate as water moves out from the limb as the filtrate moves down. Whereas the ascending limb is impermeable to water but permeable to electrolytes, this dilutes the filtrate as it moves upward.
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