ICSE BoardEnglish MediumSTD 10BiologyThe Excretory system1 Mark
MCQ
Urea is synthesised from extra amino acids in:
A
Kidney
✓
Liver
C
Uriniferous tubules
D
Blood
✓
Answer
Correct option: B.
Liver
(b) Liver Explanation: The liver is responsible for converting ammonia, a byproduct of amino acid metabolism, into urea through the urea cycle. This process makes urea less toxic for transport in the blood to the kidneys, where it is eventually excreted in urine.
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