NEET 2010 Biology question

The principal nitrogenous excretory compound in humans is synthesised

(1)In kidneys as well eliminated by kidneys
(2)In liver and also eliminated by the same through bile
(3)In the liver, but eliminated mostly through kidneysCorrect
(4)In kidneys but eliminated mostly through liver

Answer: (3)

Solution

Humans are ureotelic; the principal nitrogenous waste is urea. Ammonia produced by amino acid deamination is converted to urea in the liver by the ornithine (urea) cycle. Urea is released into the blood and

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Question ID VK-090617