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Chemistry of Carbohydrates- Multiple choice questions- Revision- Set-1
Q.1- Which of the following is a non- reducing disaccharide?
a) Galactose
b) Maltose
c) Trehalose
d) Sucrose
Q.2- Which of the following is a true statement about glucose?
a) It cannot be utilized by red blood cells
b) It has 4 asymmetric carbon atoms
c) It is stored as starch in animals
d) It is oxidized to form glycerol
Q.3-Sucrose is composed of which of the following two sugars?
a) Glucose and Glucose
b) Glucose and Fructose
c) Glucose and Galactose
d) Fructose and Galactose
Q.4- Which of the following is not a homopolysaccharide?
a) Starch
b) Heparin
c) Glycogen
d) Cellulose
Q.5-Which out of the following is a fructosan?
a) Glycogen
b) Agar
c) Inulin
d) Cellulose
Q.6- Choose a sugar abundantly present in honey:
a) Maltose
b) Fructose
c) Ribulose
d) Lactose
Q.7- Choose an Aldo pentose:
a) Glyceraldehyde
b) Dihydroxyacetone
c) Erythrose
d) Arabinose
Q.8- Which of the following is a keto tetrose?
a) Xylose
b) Erythrulose
c) Fructose
d) Sedoheptulose
Q.9- α –D-Glucose and β-D- Glucose are:
a) Stereoisomers
b) Anomers
c) Keto- Aldose Isomers
d) Optical isomers
Q.10- All tests are positive for Lactose except-
a) Benedict
b) Barfoed
c) Molisch
d) Osazone
Q.11- Which out of the following is a carbohydrate with 6 carbon atoms and a keto group as the functional group?
a) Glyceraldehyde
b) Dihydroxyacetone
c) Fructose
d) Galactose
Q.12- Mucic acid and Gluconic acids are
a) Glycosides
b) Sugar acids
c) Amino sugar acids
d) Sugar alcohols
Q.13- Sorbitol and Mannitol are-
a) Optical isomers
b) Anomers
c) Stereoisomers
d) Epimers
Q.14- Which of the following tests is not based on the reaction of carbohydrates with strong acids?
a)Molisch
b) Benedict’s
c) Bial’s
d) Seliwanoff’s
Q.15- Which out of the following does not form osazone crystals?
a) Galactose
b) Maltose
c) Lactose
d) Sucrose
Q.16- N- Acetyl Neuraminic acid is a-
a) Sugar acid
b) Amino sugar-acid
c) Amino sugar
d) Sugar alcohol
Q.17- Which of the following gives a negative reaction with Barfoed’s test
a) Glucose
b) Maltose
c) Erythrose
d) Fructose
Q.18- A polysaccharide formed by β1→4 Glycosidic linkages between glucose residues is
a) Inulin
b) Amylose
c) Agar
d) Cellulose
Q.19- Which of the following sugars is laevorotatory predominantly?
a) Starch
b) Fructose
c) Sucrose
d) Glucose
Q.20- Which of the following Mucopolysaccharides is non-sulfated and most abundant in tissues?
a) Hyaluronic acid
b) Keratan sulfate
c) Heparin
d) Dermatan sulfate
Key to answers
1)-c, 2)-b, 3)-b, 4)-b, 5)- c, 6)-b, 7)-d, 8)-b, 9)-b, 10)-b, 11)-c,12)-b, 13)-d, 14)-b, 15)-d, 16)-b, 17)-b, 18)-d,19)b, 20)-a .