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M ul ul titi pl pl e C ho hoi ce ce Questi on ons | Bi oc ochem is istr y for M ed edi cs cs – Lectur e N ot otes
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Lipid Chemistry Revision (Multiple choice question)- Set-3 Published May 16, 2014 | By Namrata By Namrata Chhabra Q.1- Which out of the following alcohols is used for waxes waxes
a) Cholesterol b) Glycerol c) Cetyl Alcohol d) Sphingol http http:/ ://www.n /www.namra amrata ta.co .co/ca /cate tego gory/ch ry/chemist emistry-of-lipid ry-of-lipids-an s-and-e d-eicosa icosano noids/ ids/multip multiple-ch le-choice oice-qu -quest estion ions-che s-chemistry-of mistry-of-lipids-a -lipids-and nd-eico -eicosa sano noids/ ids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
Q.2- Choose the Dienoic fatty acid out of the following-
a) Oleic acid b) Linoleic acid c) Linolenic acid d) Stearic acid Q.3- Which of the following lipids is abundantly present in the white matter of brain?
a) Galactocerebroside b) Glucocerebroside c) Triglycerides d) Gangliosides Q.4- Which out of the following is not a Glycerophospholipid?
a) Cardiolipin b) Plasmalogen c) Lecithin d) Sphingomyelin Q.5- Which out of the following enzymes is defective in Gaucher’s disease?
a) β- Glucocerebrosidase b) Hexosaminidase A c) Sphingomyelinase d) β- Galactocerebosidase Q.6- Choose the Glycerophospholipid that acts as a precursor for second messenger-
a) Phosphatidyl choline b) Phosphatidyl Inositol c) Phosphatidyl Serine d) Phosphatidyl Ethanolamine Q.7- Cholesterol is transported from extra hepatic tissues to liver by which of the following lipoproteins?
a) Chylomicrons b) VLDL http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
c) LDL d) HDL 8) All are non-essential fatty acids except-
a)Palmitic acid b) Linolenic c) Oleic acid d) Stearic acid 9) Which out of the following fatty acids is a precursor of prostaglandins?
a) Linoleic acid b) Arachidonic acid c) Eicosapentaenoic acid d) Linolenic acid 10) Which of the following is an animal sterol?
a)Ergo sterol, b) Stigma sterol, c) Sitosterol d) Cholesterol 11) Which out of the following is a fatty acid with 16 carbon atoms and one double bond?
a) Palmitoleic acid b) Stearic acid c) Erucic acid d) Elaidic acid 12) Which out of the following is an ώ 6 fatty acid?
a) α Linolenic acid b) Elaidic acid c) Oleic acid d) Arachidonic acid 13) A polar derivative of cholesterol is
a) Bile salt http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
b) Oestrogen c) Vitamin D d) Progesterone 14) Which type of lipid is a receptor for cholera toxin in the intestine?
a) GM2 Ganglioside b) GM1Ganglioside c) Sphingomyelin d) Galactocerebroside 15) Acetyl number is a measure of-
a) Degree of unsaturation of a fat b) Degree of rancidity of a fat c) Measure of volatile fatty acids in a fat d) Measure of number of –OH groups in a fat 16) All are conditions of hypercholesterolemia except-
a) Anemia, b) Diabetes Mellitus, c) Hypothyroidism d) Nephrotic syndrome 17) Which out of the following is an inter mediate both for the synthesis of phospholipids and Triacylglycerols?
a) Diacyl glycerol b) Cholesterol c) Choline d) Inositol 18) Which fatty acid would have the least melting point out of the following-?
a) Stearic acid b) Arachidonic acid c) Timnodonic acid d) Palmitic acid http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
19) A 3 year child was brought with hepatosplenomegaly and mental retardation. Biopsy reveals accumulation of sphingomyelin. What is the nature of the disease?
a)Gaucher’s b) Niemann Pick’s c) Krabbe’s d Tay Sach’s 20) Which of the following is not a source of glycerol?
a) Diet b) Adipolysis c) Glycolysis d) Glycogenolysis Answer Key
1)- c, 2)-b, 3)-a, 4)-d, 5)-a, 6)-b, 7)-d, 8)-b, 9)-b,10)-d,11)-a,12)-d,13)-a,14)-b,15)-d,16)-a, 17)-a, 18)c, 19)-b, 20)-d. Please help "Biochemistry for Medics" by CLICKING ON THE ADVERTISEMENTS above! Posted in Multiple Choice Questions
Lipid Chemistry Revision- Multiple choice questions (Set-2) Published May 11, 2014 | By Namrata Chhabra Q.1- Which out of the following lipid is a charged lipid?
a) Phospholipid b) Cholesterol b) Triacyl glycerol d) Glucocerebroside Q.2- Choose the ω9 fatty acid out of the following-
a) Oleic acid b) Linoleic acid c) Linolenic acid d) Stearic acid Q.3- Choose the incorrect statement about fatty acids out of the following-
a) The melting point of fatty acids decreases with the increasing degree of unsaturation http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
b) The membrane lipids contain mostly unsaturated fatty acids c) Lipids in tissues that are subject to cooling are more unsaturated d) Naturally occurring unsaturated long-chain fatty acids are nearly all of the Trans configuration. Q.4- Which out of the following is a Glycerophospholipid?
a) Cardiolipin b) Galactosyl ceramide c) GM2 d) Sphingomyelin Q.5- Which out of the following enzymes is defective in Niemann Pick’s disease?
a) β- Glucocerebrosidase b) Hexosaminidase A c) Sphingomyelinase d) β- Galactocerebosidase Q.6- Choose a lipid that acts as a precursor for Glycerophospholipids
a) Cholesterol b) Sphingosine c) N-Acetyl Neuraminic acid d) Phosphatidic acid Q.7- Dietary triacylglycerols are transported from liver to extra hepatic tissues by which of the following lipoproteins?
a) Chylomicrons b) VLDL c) LDL d) HDL Q.8) All except one are fatty acids with 18 carbon atoms -
a)Oleic acid b) Linolenic c) Palmitic acid d) Stearic acid http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
Q.9) For which out of the following compounds cholesterol serves as a precursor?
a) Bile pigments b) Bile salts c) Vitamin K d) Triacyl glycerol Q.10) Glycerol is required for the formation of all of the following compounds except-
a) Glucose b) Triacyl glycerol c) Phospholipids d) Glycolipids Q.11) Which out of the following is a fatty acid with 18 carbon atoms and one double bond in the trans configuration?
a) Palmitoleic acid b) Oleic acid c) Erucic acid d) Elaidic acid Q. 12) Which out of the following is a hydroxy fatty acid?
a) α Linolenic acid b) Linoleic acid c) Palmitic acid d) Cerebronic acid Q. 13)Which of the following enzymes is present in the snake venom ?
a) Phospholipase A1 b) PhospholipaseA2 c) Phospholipase B d) Phospholipase D Q. 14) Which type of lipid is negatively charged at physiological pH?
a) GM2 Ganglioside b) Glucocerebroside http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
c) Sphingomyelin d) Galactocerebroside Q. 15) The Iodine number of Linolenic acid is-
a) 1 b) 6 c) 4 d) 3 Q. 16) Which of the following is not a derived lipid?
a) Arachidonic acid b) Diacyl glycerol c) HDL d) Vitamin D Q. 17) Which out of the following is not an essential fatty acid
a) Arachidic acid b) Arachidonic acid c) Linoleic acid d) Linolenic acid Q. 18) – The number of mgms of KOH required to neutralize the free and combined fatty acids in one gram of a given fat is called-
a) Acid number b) Polenske number c) Saponification number d) Iodine number Q. 19) – Choose out of the following, a fatty acid with 20 carbon atoms and four double bonds-
a) Timnodonic acid b) Arachidonic acid c) Clupanodonic acid d) Nervonic acid Q. 20) Glycerol is not present inhttp://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
a) Cerebrosides b) Platelet activating factor c) Lecithin d) Plasmalogen Answer key 1)-a, 2)-a, 3)-d, 4)-a, 5)- b, 6)- d, 7)- b, 8)- c, 9)- b, 10)- d, 11)- d, 12)- d, 13)- b, 14)- a, 15)- b, 16)c, 17)- a, 18)- c, 19)- b, 20)-a.
Please help "Biochemistry for Medics" by CLICKING ON THE ADVERTISEMENTS above! Posted in Chemistry of Lipids and Eicosanoids, Multiple Choice Questions
Lipid Chemistry Revision (Multiple choice questions)- Set-1 Published May 4, 2014 | By Namrata Chhabra Q.1- Which out of the following is a storage form of lipid?
a) Phospholipid b) Glycolipid c) Triacyl glycerol d) Sulfolipid Q.2- Choose the monounsaturated fatty acid out of the following-
a) Oleic acid b) Linoleic acid c) Linolenic acid d) Stearic acid Q.3- Choose the correct statement about fatty acids out of the following-
a) The melting point of fatty acids increases with the increasing degree of unsaturation b) The membrane lipids contain mostly unsaturated fatty acids c) Lipids in tissues that are subject to cooling are more saturated d) Naturally occurring unsaturated long-chain fatty acids are nearly all of the Trans configuration. Q.4- Which out of the following is a Sphingophospholipid?
a) Cardiolipin b) Plasmalogen http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
c) Lecithin d) Sphingomyelin Q.5- Which out of the following enzymes is defective in Gaucher’s disease?
a) β- Glucocerebrosidase b) Hexosaminidase A c) Sphingomyelinase d) β- Galactocerebosidase Q.6- Choose the Glycerophospholipid that acts as a lipotropic agent-
a) Phosphatidyl choline b) Phosphatidyl Inositol c) Phosphatidyl Serine d)Cardiolipin Q.7- Dietary triacylglycerols are transported from intestine to hepatic and extra hepatic tissues by which of the following lipoproteins?
a) Chylomicrons b) VLDL c) LDL d) HDL Q.8) All are non -essential fatty acids except-
a)Oleic acid b) Linolenic c) Palmitic acid d) Stearic acid Q.9) For which out of the following compounds cholesterol does not serve as a precursor?
a) Bile pigments b) Bile salts c) Vitamin D d) Sex hormones Q.10) Glycerol is required for the formation of all of the following compounds excepthttp://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
a) Glucose b) Triacyl glycerol c) Phospholipids d) Glycolipids Q.11) Which out of the following is a fatty acid with 18 carbon atoms and one double bond in the cis configuration?
a) Palmitoleic acid b) Oleic acid c) Erucic acid d) Elaidic acid Q. 12) Which out of the following is an ώ 6 fatty acid?
a) α Linolenic acid b) Linoleic acid c) Palmitic acid d) Cerebronic acid Q. 13) The normal level of serum Total cholesterol is———–?
a) 150-220 mg/dl b) 100-200 mg/dl c) 1.5-2.5g/dl d) 20-40 mg/dl Q. 14) Which type of lipid is left undegraded in Niemann Pick’s disease?
a) GM2 Ganglioside b) GM1Ganglioside c) Sphingomyelin d) Galactocerebroside Q. 15) The Iodine number of cholesterol is-
a) 1 b) 2 c) 4 http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
d) 3 Q. 16) What are the components of a Galactocerebroside?
a) Sphingosine+ fatty acid+ Galactose b) Glycerol +Fatty acids +Phosphoric acid+ Galactose c) Glycerol +Fatty acids +Phosphoric acid +Nitrogenous base+ Galactose d) Sphingosine+ fatty acids +Phosphoric acid+ Galactose Q. 17) Which phospholipid out of the following is a component of inner mitochondrial membrane?
a) Cardiolipin b) Lecithin c) Plasmalogen d) Cephalin Q. 18)- The significance of estimating L: S ratio of amniotic fluid in a pregnant female lies in evaluating-
a) Fetal heart rate b) Fetal lung maturity c) Fetal head size d) Expected date of delivery Q. 19) – Choose out of the following, a fatty acid with 20 carbon atoms and four double bonds-
a) Timnodonic acid b) Arachidonic acid c) Clupanodonic acid d) Nervonic acid Q. 20) Glycerol is present in-
a) Cerebrosides b) Gangliosides c) Sphingomyelin d) Plasmalogen Key to Answers 1)- c, 2)-a,3)-b,4)-d,5)-a,6)-a,7)-a,8)-b,9)-a,10)-d,11)-b,12)-b,13)-b,14)-c,15)-b,16)-a,17)-a,18)http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
b,19)-b,20)-d
Please help "Biochemistry for Medics" by CLICKING ON THE ADVERTISEMENTS above! Posted in Chemistry of Lipids and Eicosanoids, Multiple Choice Questions
Chemistry of lipids and Eicosanoids-Multiple Choice Questions(Solved) Published January 22, 2012 | By Namrata Chhabra
Q.1- Endogenously synthesized triacylglycerols are transported from liver to extra hepatic tissues by which of the following lipoproteins? a) Chylomicrons b) VLDL c) LDL d) HDL Q.2- All of the following have 18 carbon atoms except – a) Linoleic acid b) Palmitic acid c) Linolenic acid d) Stearic acid Q.3- Sphingosine is not present ina) Cerebrosides b) Gangliosides c) sphigomyelin d) Plasmalogen Q.4- Triacylglycerols area) Energy rich compounds b) Nonpolar in nature c) Can be stored in unlimited amounts d) All of the above Q.5- All are essential fatty acids excepta)Linoleic, b) Linolenic c) Arachidonic acid d) Stearic acid Q.6- The deficiency of Lung surfactant, Dipalmitoyllecithin (DPL) causes, Respiratory Distress Syndrome. DPL is a – a) Cerebroside b) Ganglioside c) Phospholipid d) Lipoprotein Q.7- Choose the correct statement a) The melting point of a fatty acid increases with the increasing degree of unsaturation in the hydrophobic chain b) Most of the naturally fatty acids have trans double bonds c) Arachidonic acid is a relatively nonessential fatty acid d) The membrane lipids are rich in saturated fatty acids. Q.8- Which out of the following fatty acids is a precursor of series -1 Eicosanoids? a) Linoleic acid b) Arachidonic acid c) Eicosapentaenoic acid http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
d) Linolenic acid Q.9- What is the cause of hyper acidity on long-term usage of Aspirin? a) Inhibition of cyclo oxygenase b) Increased synthesis of PGs c) Inhibition of Phospholipase A2 d) All of the above Q.10- Which nitrogenous base out of the following is present in lecithin —? a) Choline b) Adenine c) Ethanolamine d) Any of the above Q.11- Cholesterol is a precursor of all excepta)Bile salts, b)Bilirubin c) Steroids d) vitamin D Q.12- Glycerol is used for the synthesis of all excepta) Glucose., b) Phospholipids, c) Glycolipids, d) Triacylglycerol Q.13- Which out of the following is a fatty acid with 16 carbon atoms and one double bond? a) Palmitoleic acid b) Oleic acid c) Erucic acid d) Elaidic acid Q.14-Which out of the following is an ώ 3 fatty acid? a) α Linolenic acid b) Linoleic acid c) Palmitic acid d) Arachidonic acid Q.15- Fats on keeping fora long time under go spontaneous hydrolysis, what is this process called? a) Saponification b) Hydrolytic Rancidity c) Decomposition d) All of the above Q.16- Which out of the following enzymes is deficient in Gaucher’s disease? a) Beta Glucosidase b) Beta Galactosidase c) Hexosaminidase A d) Neuraminidase Q.17- Prostcyclins are synthesized in- ———? a) Platelets b) Endothelial cells c) Gastric mucosa d) Basophils Q.18- Cyclo-oxygenase is inhibited by all except——–? a) Aspirin b) Indomethacin c) Brufen d) Zileuton Q.19- The normal level of serum Total cholesterol is———–? a) 150-220 mg/dl http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
b) 100-200 mg/dl c) 1.5-2.5g/dl d) 20-40 mg/dl Q.20- Choose out of the followings, a fatty acid with 20 carbon atoms and five double bondsa) Timnodonic acid b) Arachidonic acid c) Clupanodonic acid d) Nervonic acid Q.21- Which type of lipid is a receptor for cholera toxin in the intestine? a) GM2 Ganglioside b) GM1 Ganglioside c) Sphingomyelin d) Galactocerebroside Q.22- The significance of estimating L: S ratio of amniotic fluid in a pregnant female lies in evaluatinga) Fetal heart rate b) Fetal lung maturity c) Fetal head size d) Expected date of delivery Q.23- Iodine number is a measure ofa) Degree of unsaturation of a fat b) Degree of rancidity of a fat c) Measure of volatile fatty acids in a fat d) Measure of number of –OH groups in a fat Q.24-Which phospholipid out of the following is antigenic in nature -? a) Cardiolipin b) Lecithin c) Plasmalogen d) Cephalin Q.25- Which out of the followings is not a derived lipid? a) Ketone body b) PGE2 c) Diacylglycerol, d) Galactosyl ceramide Q.26- What are the components of a ceramide? a) Sphingosine+ fatty acid b) Glycerol+Fatty acids+Phosphoric acid c) Glycerol+Fatty acids+Phosphoric acid+Nitrogenous base d) Sphingosine+ fatty acids+Phosphoric acid Q.27- Choose the incorrect statementa) The chemical name of Arachidonic acid is Eicosa penta enoic acid b) Cyclo-oxygenase and peroxidase are the components of PG-H synthase complex c) Oleic acid is represented by 18;1,∆9 d) NSAIDs act by inhibiting Phospholipase A2 enzyme. Answers1-(b)- VLDL 2-(b)- Palmitic acid 3-(d)- Plasmalogen 4-(d) All of the above 5-(d) Stearic acid 6-(c) Phospholipid 7-(c) Arachidonic acid 8-(a) Linoleic acid 9-(a)- Inhibition of cyclo-oxygenase enzyme http://www.namrata.co/category/chemistry-of-lipids-and-eicosanoids/multiple-choice-questions-chemistry-of-lipids-and-eicosanoids/
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M ul ti pl e C hoi ce Questi ons | Bi ochem istr y for M edi cs – Lectur e N otes
10-(a) Choline 11-(b) Bilirubin 12-(c) Glycolipids 13-(a) –Palmitoleic acid 14-(a)-α- Linolenic acid 15-(b)-Hydrolytic Rancidity 16-(a) Beta Glucosidase 17-(b)-Endothelial cells 18-(d)-Zileuton 19-(a) 150-220 mg/dL 20-(a) Timnodonic acid 21-(b) GM1- Ganglioside 22-(b) Fetal lung maturity 23-(a)- Degree of unsaturation 24-(a)- Cardiolipin 25-(a)- Galactosyl Ceramide 26-(a)- Sphingosine+Fatty acid 27-(d) NSAIDs act by inhibiting Phospholipase A2 enzyme Please help "Biochemistry for Medics" by CLICKING ON THE ADVERTISEMENTS above! Posted in Chemistry of Lipids and Eicosanoids, Multiple Choice Questions
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