Which of the following is correct about breakdown of hemoglobin (Hb)_____________?
(A) Hb→Heme→bilirubin→Urobilinogen
(B) Heme→Hb→Biliverdin→Urobilinogen
(C) Hb→Heme→Bilverdin→Uro bilinogen
(D) Hb→Heme→bilirubin→Urobilinogen→Biliverdin
Heme in haemoglobin is____________?
(A) Between Helix C and D
(B) Surrounded by non polar environment
(C) Bonded to E7 histidine
(D) Protoporophyrin IX
Cytochromes are_____________?
(A) Pyridine nucleotides
(B) Riboflavin containing nucleotides
(C) Metal containing flavoproteins
(D) Iron-porphyrin proteins
Which of the following is a precursor of protoporphyrin_______________?
(A) Alanine
(B) Leucine
(C) Histidine
(D) Glycine
Proteins are absorbed from GIT as_____________?
(A) Amino acids
(B) Peptides
(C) Peptones
(D) All of the above
Which of the following is not a part of hemoglobin molecule___________?
(A) Pyrrole rings
(B) Vinyl groups
(C) Histidine
(D) Ferric ions
In Hartnup’s disease _______ is excreted in the urine?
(A) Ornithine
(B) Glutamine
(C) Tryptophan
(D) Phenylalanine
Thyroxine and catecholamines are derived from_____________?
(A) Tyrosine
(B) Tryptophan
(C) Alanine
(D) Leucine
Which of the following is present in the plasma but absent in the serum ?
(A) Albumin
(B) Globulin
(C) Lecithin
(D) Firbinogen
Synthesis of protein occurs on__________________?
(A) Mitochondria
(B) Poly ribosomes
(C) Nucleus
(D) Golgi bodies