Excretory Products And Their Elimination
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Excretory Products And Their Elimination Ques 4
4. In Ornithine cycle, which one pair of the following wastes are removed from the blood?
[1996]
(a) $CO_2$ and urea
(b) $CO_2$ and ammonia
(c) Ammonia and urea
(d) Urea and sodium salts
Show Answer
Answer : b
Hints & Solutions
(b) In ureotelic animals urea is formed from ammonia by Ornithine cycle. $ CO_2+2 NH_3 \to CO(NH_2)_2+H_2 O $ $ \text{ ammonia Urea } $





