Description : Branched chain amino acids are (A) Cysteine and cystine (B) Tyrosine and Tryptophan (C) Glycine and Serine (D) Valine, Leucine and Isoleucine
Last Answer : Answer : D
Description : All the following are sulphur containing amino acids found in proteins except (A) Cysteine (B) Cystine (C) Methionine (D) Threonine
Last Answer : (D) Threonine
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
Last Answer : Answer : A
Description : The sparing action of methionine is (A) Tyrosine (B) Cystine (C) Arginine (D) Tryptophan
Last Answer : Answer : B
Description : Carboxy peptidase B in the small intestine hydrolyzes peptides containing (A) Leucine (B) Isoleucine (C) Arginine (D) Cysteine
Last Answer : Answer : C
Description : The limiting amino acid in wheat is (A) Leucine (B) Lysine (C) Cysteine (D) Methionine
Description : For the synthesis of amino acids cysteine, cystine and methionine the element required is a. Sulphur b. Oxygen c. Nitrogen d. None of these
Last Answer : Ans: D
Description : Methionine is synthesized in human body from (A) Cysteine and homoserine (B) Homocysteine and serine (C) Cysteine and serine (D) None of these
Description : Cysteine can be synthesized from methionine and (A) Serine (B) Homoserine (C) Homocysteine (D) Threonine
Description : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline
Description : In the genetic disorder of cystinuria, the patient excretes large quantities of cystine in their urine and its low solubility causes crystalline cystine to precipitate as stones in kidneys. The remedy ... C) NaHCO3 prevents stone formation by hydrolysis of cystine to cysteine (D) None of these
Description : Cystinuria results from inability to (A) Metabolise cysteine (B) Convert cystine into cysteine (C) Incorporate cysteine into proteins (D) Reabsorb cystine in renal tubules
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 which contains a disulphide bond is (A) Lysine (B) Methionine (C) Homocysteine (D) Cystine
Description : In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine: (A) Serine (B) Glycine (C) Leucine (D) Phenyl alanine
Description : Which among the following is an essential amino acid? (A) Cysteine (B) Leucine (C) Tyrosine (D) Aspartic acid
Description : A ketogenic amino acid is (A) Valine (B) Cysteine (C) Leucine (D) Threonine
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 : The major constituent of the proteins of hair and keratin of skin: (A) Arginine (B) Cysteine (C) Glycine (D) Arginine
Description : Hemoglobin has a high content of this amino acid: (A) Proline (B) Leucine (C) Arginine (D) Histicline
Description : Hopkins-Cole test is for identification of (A) Tyrosine (B) Tryptophan (C) Arginine (D) Cysteine
Description : Sakaguchi’s reaction is specific for (A) Tyrosine (B) Proline (C) Arginine (D) Cysteine
Description : An example of polar amino acid is (A) Alanine (B) Leucine (C) Arginine (D) Valine
Description : In E. coli the chain initiating amino acid in protein synthesis is (A) N-formyl methionine(B) Methionine (C) Serine (D) Cysteine
Description : Which amino acid is a lipotropic factor? (A) Lysine (B) Leucine (C) Tryptophan (D) Methionine
Description : Cysteine can partially meet the requirement of (A) Phenylalanine (B) Threonine (C) Methionine (D) None of these
Description : Sulphydryl group is present in (A) Cysteine (B) Methionine (C) Both (A) and (B) (D) None of these
Description : The side chain of which of the following amino acid contain sulphur atom? (A) Methionine (B) Threonine (C) Leucine (D) Tryptophan
Description : The limiting amino acid in pulses is (A) Leucine (B) Lysine (C) Tryptophan (D) Methionine
Description : A disulphide bond can be formed between (A) Two methionine residues (B) Two cysteine residues (C) A methionine and a cysteine residue (D) All of these
Description : In humans the sulphur of methionine and cysteine is excreted mainly as (A) Ethereal sulphate (B) Inorganic sulphate (C) Sulphites (D) Thioorganic compound
Description : Sulphur containing amino acid is (A) Methionine (B) Leucine (C) Valine (D) Asparagine
Last Answer : (A) Methionine
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 : Glucose cannot be synthesized from (A) Glycerol (B) Lactate (C) Alanine (D) Leucine
Description : Which of the following amino acids has an aliphatic R group? (a) Serine (b) Cysteine (c) Asparagine (d) Leucine
Last Answer : Leucine
Description : Carnitine is synthesized from (A) Lysine (B) Serine (C) Choline (D) Arginine
Description : All the following statements about carnitine are true except (A) It can be synthesised in the human body (B) It can be synthesized from methionine and lysine (C) It is required for transport of short chain fatty acids into mitochondria (D) Its deficiency can occur due to haemodialysis
Description : Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid? (a) AUG, ACG - Start/methionine (b) UUA, UCA - Leucine (c) GUU, GCU - Alanine (d) UAG, UGA - Stop
Last Answer : (b) UUA, UCA - Leucine
Last Answer : (d) UAG, UGA - Stop
Description : AUG codes for a. Methionine b. Cytosine c. Leucine d. Alanine
Last Answer : a. Methionine
Description : A characteristic of protein synthesis in both the archaea and eukarya is A.transcription and translation are coupled B.translation is inhibited by diphtheria toxin C.proteins are synthesized from D-, ... L-, isomers of amino acids D.the initiator tRNA is charged with N-formyl- methionine
Last Answer : C.proteins are synthesized from
Description : A characteristic of protein synthesis in both the archaea and eukarya is A- transcription and translation are coupled B- translation is inhibited by diphtheria toxin C- .proteins are synthesized from D-, rather than L-, isomers of amino acids D- the initiator tRNA is charged with N-formyl-methionine
Last Answer : .proteins are synthesized from D-, rather than L-, isomers of amino acids
Description : Both Acyl carrier protein (ACP) of fatty acid synthetase and coenzyme (CoA) are (A) Contain reactive phosphorylated (B) Contain thymidine (C) Contain phosphopantetheine reactive groups (D) Contain cystine reactive groups
Description : The highest concentration of cystine can be found in (A) Melanin (B) Chondroitin sulphate (C) Myosin (D) Keratin
Description : The major source of NH3 produced by the kidney is (A) Leucine (B) Glycine (C) Alanine (D) Glutamine