Urea

question 89

Multiple Choice

Urea

• A) is a waste product resulting from the breakdown of protein
• B) is passively reabsorbed at the end of the proximal tubule down a urea concentration gradient created by the osmotic-induced reabsorption of water from the proximal tubule
• C) recycling between the late portion of the collecting tubule and the long loops of Henle contributes to medullary hypertonicity
• D) is found in the blood, filtrate, and urine
• E) all of these

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