Description : Oils having more than 50 % polyunsaturated fatty acids include all of the following except (A) Groundnut oil (B) Soyabean oil (C) Sunflower oil (D) Safflower oil
Last Answer : Answer : A
Description : The percentage of polyunsaturated fatty acids in butter is (A) 60 (B) 37 (C) 25 (D) 3
Last Answer : Answer : D
Description : Synthesis of polyunsaturated fatty acids involves the enzyme systems: (A) Acyl transferase and hydratase (B) Desaturase and elongase (C) Ketoacyl-CoA reductase and hydratase (D) Dihydroxyacetone phosphate
Description : Vitamin E protects the polyunsaturated fatty acids from oxidation by molecular oxygen in the formation of (A) Superoxide (B) Peroxide (C) Trioxide (D) All of these
Last Answer : Answer : B
Description : Vitamin E protects (A) Polyunsaturated fatty acids against aperoxidation (B) Vitamin A and carotenes against oxidation (C) Lung tissue against atmospheric pollutants (D) All of these
Description : The desaturation and chain elongation system of polyunsaturated fatty acids are greatly diminished in the absence of (A) Insulin (B) Glycagon (C) Epinephrine (D) Thyroxine
Description : Predominant fatty acids in meat are (A) Saturated (B) Monounsaturated (C) Polyunsaturated (D) Mono and poly-unsaturated
Description : Fluidity of membranes is increased by the following constituent except (A) Polyunsaturated fatty acids (B) Saturated fatty acids (C) Integral proteins (D) Cholesterol
Description : Diets having a high ratio of polyunsaturated: saturated fatty acids can cause (A) Increase in serum triglycerides (B) Decrease in serum cholesterol (C) Decrease in serum HDL (D) Skin lesions
Description : Propionyl CoA is formed on oxidation of (A) Monounsaturated fatty acids (B) Polyunsaturated fatty acids (C) Fatty acids with odd number of carbon atoms (D) None of these FATS AND FATTY ACID METABOLISM 83
Last Answer : Answer : C
Description : Which of the following can be oxidized by β-oxidation pathway? (A) Saturated fatty acids (B) Monosaturated fatty acids (C) Polyunsaturated fatty acids (D) All of these
Description : Animal fat is in general (A) Poor in saturated and rich in polyunsaturated fatty acids (B) Rich in saturated and poor in polyunsaturated fatty acids (C) Rich in saturated and polyunsaturated fatty acids (D) Poor in saturated and polyunsaturated fatty acids
Last Answer : B
Description : Name polyunsaturated fatty acids.
Last Answer : Linoleic, linolenic and arachidonic acids.
Description : Name some polyunsaturated fatty acids.
Description : The desaturation and chain elongation system of polyunsaturated fatty acid are enhanced by (A) Insulin (B) Glucagon (C) Epinephrine (D) Thyroxine
Description : In glycerophospholipids, a polyunsaturated fatty acid is commonly attached to which of the following carbon atom of glycerol? (A) Carbon 1 (B) Carbon 2 (C) Both (A) and (B) (D) None of these
Description : Which of the following is omega-3 polyunsaturated fatty acid? (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid
Description : Which of the following is a polyunsaturated fatty acid? (A) Palmitic acid (B) Palmitoleic acid (C) Linoleic acid (D) Oleic acid
Description : Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these
Description : An oil which contains cyclic fatty acids and once used in the treatment of leprosy is (A) Elaidic oil (B) Rapeseed oil (C) Lanoline (D) Chaulmoogric oil
Description : Current concepts concerning the intestinal absorption of triacylglycerols are that (A) They must be completely hydrolysed before the constituent fatty acids can be absorbed (B) They are hydrolysed partially ... portal blood (D) In the absence of bile the hydrolysis of triacyl glycerols is absorbed
Description : Fatty acids having chain length of 10 carbon atoms enter the (A) Portal ciruclation (B) Lacteals (C) Systemic circulation (D) Colon
Description : ∆9 indicates a double bond between carbon atoms of the fatty acids: (A) 8 and 9 (B) 9 and 10 (C) 9 and 11 (D) 9 and 12
Description : The number of ml of N/10 KOH required to neutralize the fatty acids in the distillate from 5 gm of fat is called (A) Reichert-Meissel number (B) Polenske number (C) Acetyl number (D) Non volatile fatty acid number
Description : The requirement of vitamin E is increased with greater intake of (A) Carbohydrates (B) Proteins (C) Polyunsaturated fat (D) Saturated fat
Description : The edible oil commonly used in India for preparation of toilet soap is (a) Linseed oil (b) Mustard oil (c) Soyabean oil (d) Coconut oil
Last Answer : Ans: (d)
Description : Safest oil for human consumption ? a Ground nut oil b Soyabean c Mustard oil d Sunflower oil
Last Answer : d Sunflower oil
Description : Which of the following vegetable oils does not contain essential fatty acids? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4) Gmundnut oil
Last Answer : (1) Sunflower oil Explanation: Fatty Acids are aliphatic carboxylic acid with varying hydrocarbon lengths at one end of the chain joined to terminal carboxyl (-COOH) group at the other end.
Description : Pick out the correct statement. (A) A fat is converted into oil by its hydrogenation (B) There is no difference between a fat and an oil so far as its physical properties are ... Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content
Last Answer : (C) All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms
Description : Oil is a/an (A) Mixture of glycerides (B) Mixture of glycerides of fatty acids (C) Solid at normal temperature (D) Ester of alcohols other than glycerine
Last Answer : (B) Mixture of glycerides of fatty acids
Description : Tall oil obtained as a by-product from the black liquor recovery is (A) A black, sticky & viscous liquid (B) Used in the manufacture of greases, emulsions & soaps (C) Composed mainly of rosin & fatty acids (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil. (A) Drying (B) Semi-drying (C) Non-drying (D) None of these
Last Answer : (C) Non-drying
Description : Saponification value/number of an oil or fat is a measure of its (A) Fatty acid content (B) Degree of unsaturation of the fatty acids present in it (C) Average molecular weight (D) Insoluble fatty acid content
Last Answer : (C) Average molecular weight
Description : Molasses is the starting material for the production of (A) Alcohol (B) Essential oil (C) Fatty acids (D) Massecuite
Last Answer : (A) Alcohol
Description : Which of the following vegetable oils does not contain essential fatty acids ? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4)Groundnut oil
Last Answer : Sunflower oil
Description : Biological value of soyabean protein is (A) 86 (B) 71 (C) 64 (D) 54 MINERAL METABOLISM 193
Description : Vitamin K2 was originally isolated from (A) Soyabean (B) Putrid fishmeal (C) Alfa alfa (D) Oysters
Description : Soyabean proteins are rich in (A) Lysine (B) Alanine (C) Glcyine (D) Aspartic acid
Description : Vitamin K2 was originally isolated from (A) Soyabean (B) Wheat gram (C) Alfa Alfa (D) Putrid fish meal
Description : Highest protein content amongst the following is present in (A) Wheat (B) Rice (C) Pulses (D) Soyabean
Description : A vegetable source of protein is (A) Egg plant (B) Soyabean (C) Tree of the Heaven (D) Devil’s dung
Description : Protein content of soyabean is about (A) 30% (B) 40% (C) 50% (D) 60%
Description : Calcium absorption is inferred by (A) Fatty acids (B) Amino acids (C) Vitamin D (D) Vitamin B12
Description : Epinephrine increases the concentration of free fatty acids in plasma by increasing (A) Extramitochondrial fatty acid synthesis (B) Mitochondrial fatty acid chain elongation (C) Microsomal fatty acid chain elongation (D) Lipolysis in adipose tissue
Description : All the following statements about acetyl CoA carboxylase are true except (A) It is required for de novo synthesis of fatty acids (B) It is required for mitochondrial elongation of fatty acids ( ... for microsomal elongation of fatty acids (D) Insulin converts its inactive form into its active form
Description : β-oxidation of fatty acids is inhibited by (A) NADPH (B) Acetyl CoA (C) Malonyl CoA (D) None of these
Description : The major site for elongation of medium chain fatty acids is (A) Mitochondria (B) Cytosol (C) Microsomes (D) All of these
Description : Formation of acetyl CoA from pyruvate for de novo synthesis of fatty acids requires (A) Pyruvate dehydrogenase complex (B) Citrate synthetase (C) ATP citrate lyase (D) All of these
Description : Acetyl CoA required for de novo synthesis of fatty acids is obtained from (A) Breakdown of existing fatty acids (B) Ketone bodies (C) Acetate (D) Pyruvate
Description : The maximum possible chain length of fatty acids formed in the pathway of de novo synthesis is (A) 16 Carbon atoms (B) 18 Carbon atoms (C) 20 Carbon atoms (D) 24 Carbon atoms