Description : Which one of the following is not a phospholipid? (A) Lecithin (B) Plasmalogen (C) Lysolecithin (D) Gangliosides
Last Answer : Answer : D
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 : 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 : 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 alkyl radical in plasmalogen is an alcohol: (A) Saturated (B) Unsaturated (C) Both (A) and (B) (D) None of these
Last Answer : Answer : A
Description : If the fatty acid is esterified with an alcohol of high molecular weight instead of glycerol, the resulting compound is (A) Lipositol (B) Plasmalogen (C) Wax (D) Cephalin
Last Answer : Answer : C
Description : Sphingomyelins contain a complex amino alcohol named as (A) Serine (B) Lysolecithin (C) Sphingosine (D) Glycol
Description : An important finding in Tay-sach’s disease is (A) Renal failure (B) Accumulation of gangliosides in brain and spleen (C) Cardiac failure (D) Anemia
Description : An important finding in Refsum’s disease is (A) Accumulation of ceramide trihexoside in the kidney (B) Accumulation of phytanic acid in the blood and tissues (C) Accumulation of gangliosides in brain and spleen (D) Skin eruptions
Description : Gangliosides are the glycolipids occurring in (A) Brain (B) Liver (C) Kidney (D) Muscle
Description : Cerebronic acid is present in (A) Glycerophospholipids (B) Sphingophospholipids (C) Galactosyl ceramide (D) Gangliosides
Description : Gangliosides derived from glucosylceramide contain in addition one or more molecules of (A) Sialic acid (B) Glycerol (C) Diacylglycerol (D) Hyaluronic acid
Description : Gangliosides are complex glycosphingolipids found in (A) Liver (B) Brain (C) Kidney (D) Muscle
Description : LCAT is (A) Lactose choline alamine transferse (B) Lecithin cholesterol acyl transferase (C) Lecithin carnitine acyl transferase (D) Lanoleate carbamoyl acyl transferase
Description : Lecithin contains a nitrogenous base named as (A) Ethanolamine (B) Choline (C) Inositol (D) All of these
Description : Activated lecithin cholesterol acyl transferase is essential for the conversion of (A) VLDL remnants into LDL (B) Nascent HDL into HDL (C) HDL2 into HDL3 (D) HDL3 into HDL2
Description : Dipalmitoyl lecithin acts as (A) Platelet activating factor (B) Second messenger for hormones (C) Lung surfactant (D) Anti-ketogenic compound
Description : The nitrogenous base in lecithin is (A) Ethanolamine (B) Choline (C) Serine (D) Betaine
Description : Phospholipid acting as surfactant is (A) Cephalin (B) Phosphatidyl inositol (C) Lecithin (D) Phosphatidyl serine
Description : Apolipoprotein C-II is an activator of (A) Lecithin cholesterola acyl transferase (B) Phospholipase C (C) Extrahepatic lipoprotein lipase (D) Hepatic lipoprotein lipase
Description : What is Lecithin?
Last Answer : Phosphatidyl choline.
Description : Which of the following gives a positive Ninhydrin test? (A) Reducing sugar (B) Triglycerides (C) α-amino acids (D) Phospholipids
Description : Fatty liver is caused due to accumulation of (A) Fatty acids (B) Cholesterol (C) Phospholipids (D) Triacylglycerol
Description : The common precursor in the biosynthesis of triacylglycerol and phospholipids is (A) 1, 2-Diacylglycerol phosphate (B) 1-Acylglycerol 3-phosphate (C) Glycerol 3-phosphate (D) Dihydroxyacetone phosphate
Description : Phospholipids occur in (A) Myelin sheath (B) Stabilizes chylomicrans (C) Erythrocyte membrane (D) All of these
Description : Phospholipids are important cell membrane components since (A) They have glycerol (B) Form bilayers in water (C) Have polar and non-polar portions (D) Combine covalently with proteins
Description : Across a membrane phospholipids act as carrier of (A) Organic compounds (B) Inorganic ions (C) Nucleic acids (D) Food materials
Description : Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids
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
Description : Very low density lipoproteins are relatively rich in (A) Cholesterol (B) Triacyl glycerol (C) Free fatty acids (D) Phospholipids
Description : CTP is required for the synthesis of (A) Fatty acids (B) Proteins (C) Phospholipids (D) Cholesterol
Description : Phospholipids are important cell membrane components because (A) They have glycerol (B) They can form bilayers in water (C) They have both polar and non polar potions (D) They combine covalently with proteins
Description : Depot fats of mammalian cells comprise mostly of (A) Cholesterol (B) Cholesterol esters (C) Triacyl glycerol (D) Phospholipids
Description : Phospholipids help the oxidation of (A) Glycerol (B) Fatty acids (C) Glycerophosphates(D) None of these
Description : The rate of fatty acid oxidation is increased by (A) Phospholipids (B) Glycolipids (C) Aminolipids (D) All of these
Description : The combination of an amino alcohol, fatty acid and sialic acid form (A) Phospholipids (B) Sulpholipids (C) Glycolipids (D) Aminolipids
Description : Lovastatin and mevastatin lower (A) Serum triglycerides (B) Serum cholesterol (C) Serum phospholipids (D) All of these
Description : All of the following statements about multiple sclerosis are true except (A) There is loss of phospholipids from white matter (B) There is loss of sphingolipids from white matter (C) There is loss of esterified cholesterol from white matter (D) White matter resembles gray matter in composition
Description : Sphingomyelins: (A) Phospholipids (B) Nitrolipids (C) Alcohols (D) None of these
Description : Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these
Description : In adipose tissue, glycerol-3-phosphate required for the synthesis of triglycerides comes mainly from (A) Hydrolysis of pre-existing triglycerides (B) Hydrolysis of phospholipids (C) Dihydroxyacetone phosphate formed in glycolysis (D) Free glycerol
Description : Lipids are stored in the body mainly in the form of (A) Phospholipids (B) Glycolipids (C) Triglycerides (D) Fatty acids
Description : The major lipid in chylomicrons is (A) Triglycerides (B) Phospholipids (C) Cholesterol (D) Free fatty acids
Description : The highest phospholipids content is found in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : In neutral fats, the unsaponificable matter includes (A) Hydrocarbons (B) Triacylglycerol (C) Phospholipids (D) Cholsesterol
Description : The importance of phospholipids as constituent of cell membrane is because they possess (A) Fatty acids (B) Both polar and nonpolar groups (C) Glycerol (D) Phosphoric acid
Description : Unsaturated fatty acids is known as (A) Non-essential fatty acids (B) Essential fatty acids (C) Cerebrosides (D) Phospholipids
Description : Amino acids provide the nitrogen for the synthesis of (A) The bases of the phospholipids (B) Uric acid (C) Glycolipids (D) Chondroitin sulphates
Description : Low density plasma proteins are rich in (A) Chylomicrons (B) Cholesterol (C) Triglycerides (D) Phospholipids