Description : Oligosaccharide-pyrophosphoryl dolichol is required for the synthesis of (A) N-linked glycoproteins (B) O-linked glycoproteins (C) GPI-linked glycoproteins (D) All of these
Last Answer : Answer : A
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 : 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 : Glycoproteins are marked for destruction by removal of their (A) Oligosaccharide prosthetic group (B) Sialic acid residues (C) Mannose residues (D) N-terminal amino acids
Last Answer : Answer : D
Description : Skeletal muscle breakdown produces predominantly liberation of which two amino acids? A. Lysine. B. Tyrosine. C. Alanine. D. Glutamine. E. Arginine.
Last Answer : Answer: CD DISCUSSION: Alanine is released from skeletal muscle and extracted by the liver, where it is converted to new glucose. Glutamine is also released from muscle and participates in ... these two amino acids account for approximately two thirds of the nitrogen released from skeletal muscle
Description : In biotin-containing enzymes, the biotin is bound to the enzyme by (A) An amide linkage to carboxyl group of glutamine (B) A covalent bond with CO2 (C) An amide linkage to an amino group of lysine (D) An amide linkage to α-carboxyl group of protein
Description : For synthesis of CTP and UTP, the amino group comes from (A) Amide group of Asparagine (B) Amide group of glutamine (C) α-Amino group of glutamine (D) α-Amino group of glutamate
Last Answer : Answer : B
Description : In brain, the major metabolism for removal of ammonia is the formation of (A) Glutamate (B) Aspartate (C) Asparagine (D) Glutamine
Description : Ammonia is transported from muscles to liver mainly in the form of (A) Free ammonia (B) Glutamine (C) Asparagine (C) Alanine
Description : Toxicity of mercury and cadmium is being reversed by protein mainly using the amino acid residue ____________. (a) Cysteine (b) Glycine (c) Lewcine (d) Lysine
Last Answer : (a) Cysteine
Description : A molecule of CO2 is captured by biotin when it acts as coenzyme for carboxylation reaction. The carboxyl group is covalently attached to (A) A nitrogen (N1) of the biotin molecule (B) Sulphur of thiophene ring (C) α-Amino group of lysine (D) α-Amino group of protein
Description : The acid amide of Aspartic acid is (A) Glutamine (B) Arginine (C) Aspargine (D) Ornithine
Description : A vasodilating compound is produced by the decarboxylation of the amino acid: (A) Arginine (B) Aspartic acid (C) Glutamine (D) Histidine
Description : The amino acid which is not optically active is (A) Alanine (B) Glycine (C) Glutamine (D) Lysine
Description : The compound having the formula H2N—CO—NH—CH2—CH2—CH2—CH— COOH is | NH2 (A) Lysine (B) Glutamine (C) Serine (D) Citrulline
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 : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline
Description : α-helix is disrupted by certain amino acids like (A) Proline (B) Arginine (C) Histidine (D) Lysine
Description : Sakaguchi reaction is answered by (A) Lysine (B) Ornithine (C) Arginine (D) Arginino succinic acid
Description : An –OH group is present in the side chain of (A) Serine (B) Arginine (C) Lysine (D) Proline
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 : 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 : Which one of the following is semiessential amino acid for humans? (A) Valine (B) Arginine (C) Lysine (D) Tyrosine
Description : An aromatic amino acid is (A) Lysine (B) Tyrosine (C) Taurine (D) Arginine
Last Answer : (B) Tyrosine
Description : In glycoproteins, carbohydrate residues are attached to which group of the polypeptide chain?
Last Answer : Hydroxyl group of serine or threonine.
Description : Sulphur containing amino acid (A)Lysine (B) Methionine (C)Glutamine (D) Glycine
Last Answer : (B) Methionine
Description : A carbohydrate composed of three to ten sugar molecules is called a(n) : (a) disaccharide (b) oligosaccharide (c) polysaccharide (d) monosaccharide
Last Answer : oligosaccharide
Description : One of the given example is an amino acid: (A) Oh-Lysine (B) Protein (C) Leucine (D) Serine
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
Description : Hydroxylation of Proline and Lysine in a protein is effected by (A) Vitamin B1 (B) Vitamin B2 (C) Vitamin B6 (D) Vitamin C
Description : In purine biosynthesis carbon atoms at 4 and 5 position and N at 7 position are contributed by (A) Glycine (B) Glutamine (C) Alanine (D) Threonine
Description : In urea synthesis, the amino acid functioning solely as an enzyme activator: (A) N-acetyl glutamate(B) Ornithine (C) Citrulline (D) Arginine
Description : Which one of the following organelle in the figure correctly matches with its function? (a) Golgi apparatus, formation of glycolipids (b) Rough endoplasmic reticulum, protein synthesis (c) Rough endoplasmic reticulum, formation of glycoproteins (d) Golgi apparatus, protein synthesis
Last Answer : (b) Rough endoplasmic reticulum, protein synthesis
Description : With regard to membrane receptors for hormones: a. they are often glycoproteins b. they are important for hormones made up of steroid c. those for insulin exhibit an intrinsic protein kinase activity d. glucagon uses calcium as a second messenger
Last Answer : they are often glycoproteins
Description : Match the column I with column II. Column-I Column-II A. Golgi apparatus (i) Synthesis of protein B. Lysosomes (ii) Trap waste and excretory products C. Vacuoles (iii) Formation of glycoproteins and glycolipids D. Ribosomes (iv) Digesting ... ), C-(iv), D-(i) (d) A-(i), B-(ii), C-(iv), D-(iii)
Last Answer : (a) A-(iii), B-(iv), C-(ii), D-(i)
Description : The first amino acid incorporated in a polypeptide in a ribosome of a human is (A) N formyl methionine (B) Methionine (C) Phenyl alanine (D) Hydroxy lysine
Description : The amino terminal of all polypeptide chain at the time of synthesis in E. coli is tagged to the amino acid residue: (A) Methionine (B) Serine (C) N-formyl methinine(D) N-formal serine
Description : At the lowest energy level α-helix of polypeptide chain is stabilised (A) By hydrogen bonds formed between the H of peptide N and the carbonyl O of the residue (B) Disulphide bonds (C) Non polar bonds (D) Ester bonds
Description : In the A chain of insulin molecule the Cterminal amino acid is (A) Asparagine (B) Threonine (C) Valine (D) Tyrosine
Description : An amino acid that does not form an αhelix is (A) Asparagine (B) Tyrosine (C) Tryptophan (D) Proline
Description : An essential amino acid in man is (A) Proline (B) Threonine (C) Asparagine (D) Tyrosine
Description : All of the following statements about aspartate are true except (A) It is non-essential amino acid (B) It is a dicarboxylic amino acid (C) It can be synthesized from pyruvate and glutamate (D) It can be converted into asparagine
Description : The amino acid with a nonpolar side chain is (A) Serine (B) Valine (C) Asparagine (D) Threonine
Description : Sulphur containing amino acid is (A) Methionine (B) Leucine (C) Valine (D) Asparagine
Last Answer : (A) Methionine
Description : Glucose cannot be classified as (a) a hexose (b) an oligosaccharide (c) an aldose (d) a monosaccharide
Last Answer : an oligosaccharide
Description : Sucrose, ordinary table sugar, may be classified as a: w) Monosaccharide x) Disaccharide y) Polysaccharide z) Oligosaccharide
Last Answer : ANSWER: X -- DISACCHARIDE