NEET 2016 Biology question

In mammals, which blood vessel would normally carry largest amount of urea?

(1)Renal vein
(2)Dorsal aorta
(3)Hepatic veinCorrect
(4)Hepatic portal vein

Answer: (3)

Solution

Urea is synthesised in the liver from ammonia through the ornithine (urea) cycle and is released into the blood, so the blood leaving the liver through the hepatic vein carries the largest amount of urea. Hence option (3). The renal vein carries blood from which the kidneys

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Question ID VK-092001