Description : Sphingomyelins are composed of fatty acids, phosphoric acid and (A) Sphingosine and choline (B) Glycerol and sphingosine (C) Glycerol and Serine (D) Glycerol and Choline
Last Answer : Answer : A
Description : Glycolipids contain an amino alcohol: (A) Sphingosine (B) Iso-sphingosine (C) Both (A) and (B) (D) None of these
Last Answer : Answer : C
Description : Sphingomyelins on hydrolysis yields (A) Glycerol, fatty acids, phosphoric acid and choline (B) Glycerol, sphingosine, choline and fatty acids (C) Sphingosine, phosphoric acid, Glycerol and inositol (D) Sphingosine, fatty acids, phosphoric acid and choline
Last Answer : Answer : D
Description : The amino alcohol sphingosine is synthesized in (A) Mitochondria (B) Cytosol (C) Nucleus (D) Endoplasmic reticulum
Description : In cephalin, choline is replaced by (A) Serine (B) Ethanolamine (C) Betaine (D) Sphingosine
Last Answer : Answer : B
Description : Sphingosine is synthesized from (A) Palmitoyl CoA and Choline (B) Palmitoyl CoA and ethanolamine (C) Palmitoyl CoA and serine (D) Acetyl CoA and choline
Description : Cerebrosides contain all the following except (A) Galactose (B) Sulphate (C) Sphingosine (D) Fatty acid
Description : In E. coli the chain initiating amino acid in protein synthesis is (A) N-formyl methionine(B) Methionine (C) Serine (D) Cysteine
Description : A ketogenic amino acid among the following is (A) Leucine (B) Serine (C) Threonine (D) Proline
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 : In A chain of the insulin molecule the Nterminal amino acid is (A) Glycine (B) Valine (C) Serine (D) Phenylalanine
Description : An amino acid required for porphyrin synthesis is (A) Proline (B) Glycine (C) Serine (D) Histidine
Description : Which of the following amino acid has been shown as one of the active site of phosphoglucomutase? (A) Lysine (B) Tyrosine (C) Serine (D) Histidine
Description : Activation or inactivation of certain key regulatory enzymes is accomplished by covalent modification of the amino acid: (A) Tyrosine (B) Phenylalanine (C) Lysine (D) Serine
Description : Which among the following is an essential amino acid for man? (A) Alanine (B) Serine (C) Valine (D) Glutamic acid
Description : Most amino acids are substrates for transamination except (A) Alanine (B) Threonine (C) Serine (D) Valine
Description : 2-Amino 3-OH propanoic acid is (A) Glycine (B) Alanine (C) Valine (D) Serine
Description : The lone pair of electrons at one of the ring nitrogens in the given amino acid makes a potential ligand, which is important in binding the iron atoms in hemoglobin: (A) Tryptophan (B) Threonine (C) Histidine (D) Serine
Description : One of the given example is an amino acid: (A) Oh-Lysine (B) Protein (C) Leucine (D) Serine
Description : The sulphur containing amino acid: (A) Homoserine (B) Serine (C) Methionine (D) Valine
Description : All amino acids are optically active except (A) Glycine (B) Serine (C) Threonine (D) Tryptophan
Description : Branched chain amino acids are (A) Cysteine and cystine (B) Tyrosine and Tryptophan (C) Glycine and Serine (D) Valine, Leucine and Isoleucine
Description : Seratonin is derived in the body from the following amino acid: (A) Phenylalanine (B) Histidine (C) Tryptophan (D) Serine
Description : An amino acid having a hydrophilic side chain is (A) Alanine (B) Proline (C) Methionine (D) Serine
Description : The amino acid which detoxicated benzoic acid to form hippuric acid is (A) Glycine (B) Alanine (C) Serine (D) Glutamic acid
Description : Small amount of urinary oxalates is contributed by the amino acid: (A) Glycine (B) Tyrosine (C) Alanine (D) Serine
Description : Most of the ammonia released from L-αamino acids reflects the coupled action of transaminase and (A) L-glutamate dehydrogenase (B) L-amino acid oxidase (C) Histidase (D) Serine dehydratase
Description : The amino acid with a nonpolar side chain is (A) Serine (B) Valine (C) Asparagine (D) Threonine
Description : An essential amino acid in man is (A) Aspartate (B) Tyrosine (C) Methionine (D) Serine
Description : The optically inactive amino acid is (A) Glycine (B) Serine (C) Threonine (D) Valine
Last Answer : (A) Glycine
Description : The types of sphingomyelins are (A) 1 (B) 3 (C) 4 (D) 5
Description : The concentration of sphingomyelins are increased in (A) Gaucher’s disease (B) Fabry’s disease (C) Fabrile disease (D) Niemann-Pick disease
Description : Sphingomyelins: (A) Phospholipids (B) Nitrolipids (C) Alcohols (D) None of these
Description : When choline of lecithin is replaced by ethanolamine, the product is (A) Spingomyelin (B) Cephalin (C) Plasmalogens (D) Lysolecithin
Description : Which of the following is not a phospholipids? (A) Lecithin (B) Plasmalogen (C) Lysolecithin (D) Gangliosides
Description : Phospholipase A2 is an enzyme which removes a fatty acid residue from lecithin to form (A) Lecithin fragments (B) Phosphotidic acid (C) Glyceryl phosphate (D) Lysolecithin
Description : Lysolecithin is formed from lecithin by the action of (A) Phospholipase A1 (B) Phospholipase A2 (C) Phospholipase C (D) Phospholipase D
Description : Which one of the following is not a phospholipid? (A) Lecithin (B) Plasmalogen (C) Lysolecithin (D) Gangliosides
Description : Lysolecithin is formed from lecithin by removal of (A) Fatty acid from position 1 (B) Fatty acid from position 2 (C) Phosphorylcholine (D) Choline
Description : The statement that is NOT correct is (a) The breaking of complex and big molecules into simpler and smaller molecules by micro-organisms is called fermentation. (b) Whisky contains high ... d) Alcoholic fermentation involves the conversion of sugars into alcohol by the use of micro-organisms.
Last Answer : Ans:(b)
Description : Ceramide is formed by the combination of sphingosine and (A) Acetyl-CoA (B) Acyl-CoA (C) Malonyl-CoA (D) Propionyl-CoA
Description : Synthesis of sphingosine requires the cofactor (A) NAD (B) NADP (C) NADPH+ (D) ATP
Description : FAD is a coenzyme for (A) Succinate dehydrogenase (B) Glycerol-3-phosphate dehydrogenase (C) Sphingosine reductase (D) All of these
Description : Sphingosine is the backbone of all the following except (A) Cerebroside (B) Ceramide (C) Sphingomyelin (D) Lecithine
Description : All the following are constituents of ganglioside molecule except (A) Glycerol (B) Sialic acid (C) Hexose sugar (D) Sphingosine
Description : Cerebrosides are composed of (A) Sphingosine, fatty acids, glycerol and phosphoric acid (B) Sphingosine, fatty acids, galactose (C) Glycerol, fatty acids, galactose (D) Glycerol, fatty acids, galactose, sphingol
Description : For synthesis of sphingosine, all the following coenzymes are required except (A) Pyridoxal phosphate (B) NADPH (C) FAD (D) NAD
Description : Glycosphingolipids are a combination of (A) Ceramide with one or more sugar residues (B) Glycerol with galactose (C) Sphingosine with galactose (D) Sphingosine with phosphoric acid
Description : Which of the following amino acids has a sulfur in the R group? (a) Serine (b) Cysteine (c) Asparagine (d) Tyrosine
Last Answer : Tyrosine