MCQ
The least toxic nitrogen waste of urine is
  • A
    Ammonia
  • B
    Allantois
  • C
    Urea
  • Uric acid

Answer

Correct option: D.
Uric acid
d
(d) Nitrogenous waste substances such as Ammonia, urea, or uric acid are produced during protein metabolism according to the species.

Small amount of nitrogenous waste substance are also produced during the metabolism of nucleic acids.

Ammonia is the most toxic followed by urea and uric acid the latter is the least toxic.

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