Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Cystine (D) Tryptophan
Last Answer : Answer : D
Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Glycine (D) Tryptophan
Description : The amino acid which contains a guanidine group is (A) Histidine (B) Arginine (C) Citrulline (D) Ornithine
Last Answer : Answer : B
Description : The amino acid containing hydroxy group: (A) Glycine (B) Isoleucine (C) Arginine (D) Thereonine
Description : It is the only amino acid having an ionizing ‘R’ group with a pK’ near 7 and is important in the active site of some enzymes: (A) Arginine (B) Cystein (C) Cystine (D) Histidine
Description : The amino acid containing hydroxyl group: (A) Alanine (B) Isoleucine (C) Arginine (D) Threonine
Description : An –OH group is present in the side chain of (A) Serine (B) Arginine (C) Lysine (D) Proline
Last Answer : Answer : A
Description : Tryptophan contains what special group?
Last Answer : . Indole group.
Description : Buffering action of haemoglobin is mainly due to its (A) Glutamine residues (B) Arginine residues (C) Histidine residues (D) Lysine residues
Last Answer : Answer : C
Description : Zinc finger motif is formed in some proteins by binding of zinc to (A) Two cysteine residues (B) Two histidine residues (C) Two arginine residues (D) Two cysteine and two histidine residues or two pairs of two cysteine residues each
Description : Presence of arginine can be detected by (A) Sakaguchi reaction (B) Million-Nasse reaction (C) Hopkins-Cole reaction (D) Gas chromatography
Description : Which of the following amino acids produce a vasoconstrictor on decarboxylation? (A) Histidine (B) Tyrosine (C) Threonine (D) Arginine
Description : In pheochromocytoma, urine will have (A) FILGU (B) VMA (C) 5 HIAA (D) Lysine and Arginine
Description : Sulphur is made available to the body by the amino acids: (A) Cystine and methionine (B) Taurine and alanine (C) Proline and hydroxyproline (D) Arginine and lysine MINERAL METABOLISM 191
Description : Carnitine is synthesized from (A) Lysine (B) Serine (C) Choline (D) Arginine
Description : In Ames’ assay, addition of a carcinogen to the culture medium allows S. typhimurium to grow (A) In the presence of histidine (B) In the presence of arginine (C) In the absence of histidine (D) In the absence of arginine
Description : In N-linked glycoproteins, oligosaccharide is attached to protein through its (A) Asparagine residue (B) Glutamine residue (C) Arginine residue (D) Lysine residue
Description : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline
Description : Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid
Description : Optical isomers of all aminoacids exist except (A) Glycine (B) Arginine (C) Alanine (D) Hydroxy proline
Description : All α-amino acids have one asymmetric carbon atom except (A) Arginine (B) Glycine (C) Aspartic acid (D) Histidine
Description : The sparing action of methionine is (A) Tyrosine (B) Cystine (C) Arginine (D) Tryptophan
Description : The amino acids required for creatine formation: (A) Glycine (B) Arginine (C) Methionine (D) All of these
Description : Carboxy peptidase B in the small intestine hydrolyzes peptides containing (A) Leucine (B) Isoleucine (C) Arginine (D) Cysteine
Description : In small intestine trypsin hydrolyzes peptide linkages containing (A) Arginine (B) Histidine (C) Serine (D) Aspartate
Description : α-helix is disrupted by certain amino acids like (A) Proline (B) Arginine (C) Histidine (D) Lysine
Description : Which one of the following is an essential amino acid? (A) Arginine (B) Tyrosine (C) Phenylalanine (D) Proline
Description : The major constituent of the proteins of hair and keratin of skin: (A) Arginine (B) Cysteine (C) Glycine (D) Arginine
Description : Cystine is synthesized from (A) Cysteine (B) Methionine (C) Arginine (D) Leucine
Description : The amino acid containing an indole ring: (A) Tryptophan (B) Arginine (C) Threonine (D) Phenylalanine
Description : The following 4 amino acids are required for completion of urea cycle except (A) Aspartic acid (B) Arginine (C) Ornithine (D) Glycine
Description : All amino acids have one asymmetric carbon atom, except (A) Arginine (B) Aspargine (C) Histidine (D) Glycine
Description : The amino acids in which the R groups have a net positive charge at pH 7.0 are (A) Lysine, Arginine, Histidine (B) Lysine, Aspargine (C) Histidine, Aspargine (D) Glutamine, Arginine
Description : Hemoglobin has a high content of this amino acid: (A) Proline (B) Leucine (C) Arginine (D) Histicline
Description : The acid amide of Aspartic acid is (A) Glutamine (B) Arginine (C) Aspargine (D) Ornithine
Description : Which one of the amino acids could serve as the best buffer at pH 7? (A) Glutamic acid (B) Arginine (C) Valine (D) Histidine
Description : An amino acid not involved in urea cycle is (A) Arginine (B) Histidine (C) Ornithine (D) Citrulline
Description : Hopkins-Cole test is for identification of (A) Tyrosine (B) Tryptophan (C) Arginine (D) Cysteine
Description : Millon’s test is for identification of (A) Tyrosine (B) Tryptophan (C) Proline (D) Arginine
Description : Sakaguchi reaction is answered by (A) Lysine (B) Ornithine (C) Arginine (D) Arginino succinic acid
Description : Which among the following is a basic amino acid? (A) Aspargine (B) Arginine (C) Proline (D) Alanine
Description : ATP is required in following reactions of urea cycle: (A) Synthesis of carbamoyl phosphate and citrulline (B) Synthesis of citrulline and argininosuccinate (C) Synthesis of argininosuccinate and arginine (D) Synthesis of carbamoyl phosphate and argininosuccinate
Description : The amino acids involved in the synthesis of creatin are (A) Arginine, glycine, active methionine (B) Arginine, alanine, glycine (C) Glycine, lysine, methionine (D) Arginine, lysine, methionine
Description : In urea synthesis, the amino acid functioning solely as an enzyme activator: (A) N-acetyl glutamate(B) Ornithine (C) Citrulline (D) Arginine
Description : Histones are (A) Identical to protamine (B) Proteins rich in lysine and arginine (C) Proteins with high molecular weight (D) Insoluble in water and very dilute acids
Description : Million-Nasse’s reaction is specific for the amino acid: (A) Tryptophan (B) Tyrosine (C) Phenylalanine (D) Arginine
Description : Sakaguchi’s reaction is specific for (A) Tyrosine (B) Proline (C) Arginine (D) Cysteine
Description : A vasodilating compound is produced by the decarboxylation of the amino acid: (A) Arginine (B) Aspartic acid (C) Glutamine (D) Histidine
Description : An example of polar amino acid is (A) Alanine (B) Leucine (C) Arginine (D) Valine
Description : Which one of the following is semiessential amino acid for humans? (A) Valine (B) Arginine (C) Lysine (D) Tyrosine