Key enzyme in urea synthesis is:: (A) Urease, (B) Carbamoyl Synthetase, (C) Arginase, (D) Ornithine
Answer is B. Ans. B. Carbamoyl SynthetaseCarbamoyl synthetase catalyses the first step in urea cycle or Krebs Henseleit cycle and it is a rate limiting step in urea synthesis.