In Hartnup’s disease _______ is excreted in the urine? A. Ornithine B. GlutamineC. Tryptophan D. Phenylalanine

Which of the following is not a part of hemoglobin molecule___________? A. Pyrrole rings B. Vinyl groups C. HistidineD. Ferric ions

Proteins are absorbed from GIT as_____________? A. Amino acids B. Peptides C. Peptones D. All of the above

Which of the following is a precursor of protoporphyrin_______________? A. Alanine B. Leucine C. HistidineD. Glycine

Cytochromes are_____________? A. Pyridine nucleotides B. Riboflavin containing nucleotides C. Metal containing flavoproteinsD. Iron-porphyrin proteins

Heme in haemoglobin is____________? A. Between Helix C and D B. Surrounded by non polar environment C. Bonded to E7 histidineD. Protoporophyrin IX

Which of the following is correct about breakdown of hemoglobin (Hb)_____________? A. Hb→Heme→bilirubin→Urobilinogen B. Heme→Hb→Biliverdin→UrobilinogenC. Hb→Heme→Bilverdin→Uro bilinogen D. Hb→Heme→bilirubin→Urobilinogen→Biliverdin

Creatine is formed metabolically from______________? A. TryptophanB. Arginine C. Phenylalanine D. Histidine

Major source of ammonia in the kidney is___________? A. Urea Aspartate B. Aspartate C. GlutamineD. Glutamate

Key enzyme in urea synthesis is____________? A. UreaseB. Carbamyl synthetase C. Arginase D. Ornithine