Description : All amino acids have one asymmetric carbon atom, except (A) Arginine (B) Aspargine (C) Histidine (D) Glycine
Last Answer : Answer : D
Description : The following 4 amino acids are required for completion of urea cycle except (A) Aspartic acid (B) Arginine (C) Ornithine (D) Glycine
Description : The α-carbon of all the amino acids is a chirality center except for __________. (a) Glycine (b) Threonine (c) Proline (d) Aspartic acid
Last Answer : Glycine
Description : A vasodilating compound is produced by the decarboxylation of the amino acid: (A) Arginine (B) Aspartic acid (C) Glutamine (D) Histidine
Description : α-helix is disrupted by certain amino acids like (A) Proline (B) Arginine (C) Histidine (D) Lysine
Last Answer : Answer : A
Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Glycine (D) Tryptophan
Description : The greatest buffering capacity at physiologic pH would be provided by a protein rich in which of the following amino acids ? (A) Lysine (B) Histidine (C) Aspartic acid (D) Valine
Last Answer : Answer : B
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 : Which of the following amino acids was not found to be synthesised in Miller’s experiment? (a) Alanine (b) Glycine (c) Aspartic acid (d) Glutamic acid (
Last Answer : (d) Glutamic acid
Description : Which of the following amino acids has a heterocyclic R group? (a) Glycine (b) Threonine (c) Proline (d) Aspartic acid
Last Answer : Proline
Description : Which of the following amino acids produce a vasoconstrictor on decarboxylation? (A) Histidine (B) Tyrosine (C) Threonine (D) Arginine
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 : Neutral amino acid is (A) Leucine (B) Lysine (C) Aspartic acid (D) Histidine
Description : The amino acids required for creatine formation: (A) Glycine (B) Arginine (C) Methionine (D) All of these
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 : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Cystine (D) Tryptophan
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 : An amino acid not involved in urea cycle is (A) Arginine (B) Histidine (C) Ornithine (D) Citrulline
Description : The amino acid which contains a guanidine group is (A) Histidine (B) Arginine (C) Citrulline (D) Ornithine
Description : An amino acid required for porphyrin synthesis is (A) Proline (B) Glycine (C) Serine (D) Histidine
Description : The basic amino acid: (A) Glycine (B) Leucine (C) Histidine (D) Proline
Last Answer : Answer : C
Description : This amino acid cannot have optical isomers: (A) Alanine (B) Histidine (C) Threonine (D) Glycine
Description : The amino acid containing hydroxy group: (A) Glycine (B) Isoleucine (C) Arginine (D) Thereonine
Description : An amino acid that does not take part in α helix formation is (A) Histidine (B) Tyrosine (C) Proline (D) Tryptophan
Description : All the following amino acids are nonessential except (A) Alanine (B) Histidine (C) Cysteine (D) Proline
Description : The acid amide of Aspartic acid is (A) Glutamine (B) Arginine (C) Aspargine (D) Ornithine
Description : In the biosynthesis of the iron protoporphyrin, the product of the condensation between succinyl-CoA and glycine is (A) α-Amino β-ketoadipic acid (B) δ-Aminolevulinate (C) Hydroxymethylbilane (D) Uroporphyrinogen I
Description : All of the following intermediates of citric acid cycle can be formed from amino acids except (A) α-Ketoglutarate (B) Fumarate (C) Malate (D) Oxaloacetate
Description : All the following amino acids are optically active except (A) Tryptophane (B) Phenylalanine (C) Valine (D) Glycine
Description : All amino acids are optically active except (A) Glycine (B) Serine (C) Threonine (D) Tryptophan
Description : Optical isomers of all aminoacids exist except (A) Glycine (B) Arginine (C) Alanine (D) Hydroxy proline
Description : Corn and gliadin are low in (A) Lysine (B) Alanine (C) Glycine (D) Aspartic acid
Description : Collagen is very rich in (A) Glycine (B) Serine (C) Aspartic acid (D) Glutamic acid
Description : Pyridoxine deficiency can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of (A) Glycine (B) Histidine (C) Tryptophan (D) Pyridoxine
Description : The carbon atom wh ich becomes asymmetric when the straight chain form of monosaccharide changes into ring form is known as CARBOHYDRATES AND CARBOHYDRATE METABOLISM 9 (A) Anomeric carbon atom (B) Epimeric carbon atom (C) Isomeric carbon atom (D) None of these
Last Answer : A
Description : Amino acids excepting histidine are not good buffering agents in cell because (A) They exist as zwitter ions (B) Their pk and not in the physiological pH of a cell (C) Only Histidine has pk of its R group at 6.0 unlike the others which have at a different pH (D) None of these
Description : Buffering action of haemoglobin is mainly due to its (A) Glutamine residues (B) Arginine residues (C) Histidine residues (D) Lysine residues
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 : 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 small intestine trypsin hydrolyzes peptide linkages containing (A) Arginine (B) Histidine (C) Serine (D) Aspartate
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 : The number of asymmetric carbon atoms in the α-D-glucopyranose molecule is : (a) 2 (b) 3 (c) 4 (d) 5
Last Answer : 5
Description : All the standard amino acids except the following have one chiral ‘c’ atom: (A) Threonine, Isoleucine (B) Isoleucine, Alanine (C) Threonine, Alanine (D) Alanine, Glutamine
Description : Aspartate amino transferase uses the following for transamination: (A) Glutamic acid and pyruvic acid (B) Glutamic acid and oxaloacetic acid (C) Aspartic acid and pyruvic acid (D) aspartic acid and keto adipic acid
Description : Pantothenic acid contains an amino acid which is (A) Aspartic acid (B) Glutamic acid (C) β-Alanine (D) β-Aminoisobutyric acid
Description : Which among the following is an essential amino acid? (A) Cysteine (B) Leucine (C) Tyrosine (D) Aspartic acid
Description : With the exception of glycine all amino acids found in protein are (A) Isocitrate dehydrogenase (B) Fumarase (C) Succinate thiokinase (D) ATPase
Description : Branched chain amino acids are (A) Cysteine and cystine (B) Tyrosine and Tryptophan (C) Glycine and Serine (D) Valine, Leucine and Isoleucine
Description : The basic amino acids are (A) Lysine (B) Bile acids (C) Glycine (D) Alanine
Description : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline