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Lipid Chemistry- Multiple-choice questions-set-3
Q.1- Which out of the following alcohols is used for waxes?
a) Cholesterol
b) Glycerol
c) Cetyl Alcohol
d) Sphingol
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 the brain?
a) Galactocerebroside
b) Glucocerebroside
c) Triglycerides
d) Gangliosides
Q.4- Which of the following is not a Glycerophospholipid?
a) Cardiolipin
b) Plasmalogen
c) Lecithin
d) Sphingomyelin
Q.5- Which 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 the second messenger-
a) Phosphatidylcholine
b) Phosphatidyl Inositol
c) Phosphatidyl Serine
d) Phosphatidyl Ethanolamine
Q.7- Cholesterol is transported from extrahepatic tissues to the liver by which of the following lipoproteins?
a) Chylomicrons
b) VLDL
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 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 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 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
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) A measure of volatile fatty acids in a fat
d) A measure of the 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 of the following is an intermediate both for the synthesis of phospholipids and Triacylglycerols?
a) Diacylglycerol
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
19) A 3-year child was brought with hepatosplenomegaly and mental retardation. Biopsy reveals the 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.
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