(A) Malate
(B) Citrate
(C) Succinate
(D) Fumarate
Transfer of the carbamoyl moiety of carbamoyl phosphate to ornithine is catalysed by a liver mitochondrial enzyme:
(A) Carbamoyl phosphate synthetase
(B) Ornithine transcarbamoylase
(C) N-acetyl glutamate synthetase
(D) N-acetyl glutamate hydrolase
Control of urea cycle involves the enzyme:
(A) Carbamoyl phosphate synthetase
(B) Ornithine transcarbamoylase
(C) Argininosuccinase
(D) Arginase
The enzyme carbamoyl phosphate synthetase requires?
(A) Mg++
(B) Ca++
(C) Na+
(D) K+
In urea synthesis, the amino acid functioning solely as an enzyme activator:
(A) N-acetyl glutamate
(B) Ornithine
(C) Citrulline
(D) Arginine
Most of the ammonia released from L-α- amino acids reflects the coupled action of transaminase and?
(A) L-glutamate dehydrogenase
(B) L-amino acid oxidase
(C) Histidase
(D) Serine dehydratase
The number of ATP required for urea synthesis is?
(A) 0
(B) 1
(C) 2
(D) 3
The enzymes of urea synthesis are found in?
(A) Mitochondria only
(B) Cytosol only
(C) Both mitochondria and cytosol
(D) Nucleus