Which amino acid is regarded as collector of amino groups?: (A) Aspaate, (B) Arginine, (C) Cysteine, (D) Glutamate
Answer is D. First step in catabolism of amino acids is the transfer of NH3 group from amino acid to Alpha Keto- Glutarate forming Glutamate- known as Transamination. So Glutamate is regarded as collector of amino groups. Note:-The safe non-toxic form of ammonia transpo in blood from most body tissues is Glutamine. Collector is Glutamate, transpoer is Glutamine