Progressive transmethylation of ethanolamine gives (A) Creatinine (B) Choline (C) Methionine (D) N-methyl nicotinamide

1 Answer

Answer :

Answer :  C

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Description : Transmethylation of guanido acetic acid gives (A) Creatine phosphate (B) Creatinine (C) Choline (D) n-methyl nicotinamide

Last Answer : Answer : A

Description : Which of these methyl donors is not a quanternary ammonium compound? (A) Methionine (B) Choline (C) Betain (D) Betainaldehyde

Last Answer : Answer : A

Description : Coenzyme A contains a nitrogenous base which is (A) Adenine (B) Guanine (C) Choline (D) Ethanolamine

Last Answer : Answer : A

Description : When choline of lecithin is replaced by ethanolamine, the product is (A) Spingomyelin (B) Cephalin (C) Plasmalogens (D) Lysolecithin

Last Answer : Answer : B

Description : Each of the following can be an intermediate in the synthesis of phosphatidyl choline except (A) Phosphatidyl inositol (B) CDP-choline (C) Phosphatidyl ethanolamine (D) Diacylglycerol

Last Answer : Answer : A

Description : In cephalin, choline is replaced by (A) Serine (B) Ethanolamine (C) Betaine (D) Sphingosine

Last Answer : Answer : B

Description : When choline of lecithine is replaced by ethanolamine the product is (A) Sphingomyelin (B) Cephalin (C) Plasmalogens (D) Lysolecithine

Last Answer : Answer : B

Description : Lecithins are composed of (A) Glycerol + Fatty acids + Phosphoric acid + Choline (B) Glycerol + Fatty acids + Phosphoric acid + Ethanolamine (C) Glycerol + Fatty acids + Phosphoric acid + Serine (D) Glycerol + Fatty acids + Phosphoric acid + Beaine

Last Answer : Answer : A

Description : Lecithin contains a nitrogenous base named as (A) Ethanolamine (B) Choline (C) Inositol (D) All of these

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

Last Answer : Answer : C

Description : The nitrogenous base in lecithin is (A) Ethanolamine (B) Choline (C) Serine (D) Betaine

Last Answer : Answer : B

Description : Cephalin consists of (A) Glycerol, fatty acids, phosphoric acid and choline (B) Glycerol, fatty acids, phosphoric acid and ethanolamine (C) Glycerol, fatty acids, phosphoric acid and inositol (D) Glycerol, fatty acids, phosphoric acid and serine

Last Answer : Answer : B

Description : Which of the following phospholipids is localized to a greater extent in the outer leaflet of the membrane lipid bilayer? (A) Choline phosphoglycerides (B) Ethanolamine phosphoglycerides (C) Inositol phosphoglycerides (D) Serine phosphoglycerides

Last Answer : A

Description : Fatty liver may be prevented by all of the following except (A) Choline (B) Betaine (C) Methionine (D) Ethionine

Last Answer : Answer : D

Description : The only known physiological methylating agents in the animal organism are (A) Choline and betaine (B) Choline and δ-adenosyl methionine (C) Betaine and δ-adenyosyl methionine (D) Dimehtyl glycine and betaine

Last Answer : Answer : C

Description : Coenzyme A contains a nitrogenous base which is (A) Adenine (B) Guanine (C) Choline (D) Ethanolamine

Last Answer : (A) Adenine

Description : Which of the following phospholipids is localized to a greater extent in the outer leaflet of the membrane lipid bilayer? (A) Choline phosphoglycerides (B) Ethanolamine phosphoglycerides (C) Inositol phosphoglycerides (D) Serine phosphoglycerides

Last Answer : (A) Choline phosphoglycerides

Description : Tetra hydroglolate can be freed from N5 methyl tetrahydrofolate only by (A) Nor epinephrine (B) Ethanol amine (C) Nicotinamide (D) Vitamin B12

Last Answer : Answer : D

Description : Both folic acid and methyl cobalamin (vitamin B12) are required in (A) Deamination of serine (B) Deamination of threonine (C) Conversion of pyridoxal phosphate to pyridoxamine phosphate (D) Methylation of homocystein to methionine

Last Answer : Answer : D

Description : Neogenesis of methyl group is (A) The availability of methyl group form δ adenosyl methionine (B) The availability of methyl group from betaine (C) Interaction between N5 N10 methylene tetra hydrofolate with a NAD+ dependent reductase (D) Availability of methyl group from methyl B12

Last Answer : Answer : C

Description : This compound has a double helical structure. (A) Deoxyribonucleic acid (B) RNA (C) Flavine-adevine dinucleotide (D) Nicotinamide adamine dinucleotide

Last Answer : Answer : A

Description : Which ot the following vitamin is involved in coenzyme function in transaminations? (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Last Answer : Answer : B

Description : The following vitamin is involved in coenzyme function in transaminations: (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Last Answer : Answer : B

Description : The enzymes with which nicotinamide act as coenzyme are (A) Dehydrogenases (B) Transaminases (C) Decarboxylases (D) Carboxylases

Last Answer : Answer : A

Description : In E. coli the chain initiating amino acid in protein synthesis is (A) N-formyl methionine(B) Methionine (C) Serine (D) Cysteine

Last Answer : Answer : A

Description : N-Formiminoglutamate is a metabolite of (A) Glutamate (B) Histidine (C) Tryptophan (D) Methionine

Last Answer : Answer : B

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

Last Answer : Answer : C

Description : The first amino acid incorporated in a polypeptide in a ribosome of a bacterium is (A) N formyl methionine (B) Methionine (C) Alamine (D) Glycine

Last Answer : Answer : A

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

Last Answer : Answer : B

Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide

Last Answer : Ethyl iodide

Description : A nucleotide consists of (A) A nitrogenous base like choline (B) Purine + pyrimidine base + sugar + phosphorous (C) Purine or pyrimidine base + sugar (D) Purine or pyrimidine base + phosphorous

Last Answer : Answer : B

Description : ADP ribosylation is the mode of action of (A) Cholera toxin (B) Acetyl choline (C) Muscerinic receptors (D) Cyclic AMP

Last Answer : Answer : A

Description : Prolactin release inhibiting hormone is believed to be (A) Serotonin (B) Norepinephrine (C) Dopanine (D) Acetyl choline

Last Answer : Answer : C

Description : A lipotropic factor is (A) Choline (B) Palmitic acid (C) Calcium (D) Vitamin C

Last Answer : Answer : A

Description : Synthesis of phosphatidylinositol by transfer of inositol to CDP diacylglycerol is catalysed by the enzyme: (A) CTP phosphatidate cytidyl transferase (B) Phosphatidate phosphohydrolase (C) CDP-diacylglycerol inositol transferase (D) Choline kinase

Last Answer : Answer : C

Description : The three vitamins which are specially required for proper nerve functions are (A) Thiamine, Niacin and Riboflavin (B) Thiamin, Folic acid, Choline (C) Thiamine, Riboflavin, Pantothenic acid (D) Thiamine, Pyridoxin, Vitamin B12

Last Answer : Answer : D

Description : Choline is not required for the formation of (A) Lecithins (B) Acetyl choline (C) Sphingomyelin (D) Cholic acid

Last Answer : Answer : D

Description : The three vitamins which are specially required for proper nerve functions are acid: (A) Thiamine, niacin and riboflavin (B) Thiamine, folic acid, choline (C) Thiamine, riboflavin, patothenic acid (D) Thiamine, pyridoxin, vitamin B12

Last Answer : Answer : D

Description : Which one of the following compounds is a key intermediate in the synthesis of both triacyl glycerols and phospholipids? (A) CDP Choline (B) Phosphatidase (C) Triacyl glyceride (D) Phosphatidyl serine

Last Answer : Answer : B

Description : Carnitine is synthesized from (A) Lysine (B) Serine (C) Choline (D) Arginine

Last Answer : Answer : A

Description : Long chain fatty acyl CoA esters are transported across the mitochondrial membrane by (A) cAMP (B) Prostaglandin (C) Carnitine (D) Choline

Last Answer : Answer : C

Description : LCAT is (A) Lactose choline alamine transferse (B) Lecithin cholesterol acyl transferase (C) Lecithin carnitine acyl transferase (D) Lanoleate carbamoyl acyl transferase

Last Answer : Answer : B

Description : Phosphatidic acid on hydrolysis yields (A) Glycerol, fatty acids, phosphoric acid, choline (B) Glycerol, fatty acids, phosphoric acid (C) Glycerol, fatty acids, phosphoric acid, Glucose (D) Sphingol, fatty acids, phosphoric acid

Last Answer : Answer : B

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 : 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 : Lysolecithin is formed from lecithin by removal of (A) Fatty acid from position 1 (B) Fatty acid from position 2 (C) Phosphorylcholine (D) Choline

Last Answer : Answer : B

Description : Glycine can be synthesized from (A) Serine (B) Choline (C) Betaine (D) All of these

Last Answer : Answer : D

Description : Protection against obesity - How promising is nicotinamide riboside, a substance found in milk?

Last Answer : Wow! Intriguing. I would be very interested to see if high doses were OK and without side effects.

Description : Which of the following pair is characterised by swollen lips, thick pigmented skin of hands and legs and irritability? (a) Thiamine – Beri-beri (b) Protein – Kwashiorkor (c) Nicotinamide – Pellagra (d) Iodine – Goitre

Last Answer : (c) Nicotinamide – Pellagra