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Question:

Which of the following statement is true regarding the urea biosynthesis?

Urea is synthesised in lysosomes

Urea cycle enzymes are located inside mitochondria

Uric acid is starting point

Urea is synthesised in kidney

Solution:

Urea synthesis takes place in the liver. Ammonia is the starting point for the urea cycle. Urea cycle enzymes are located inside the mitochondrial matrix where the urea cycle starts. So, the correct answer is option C.