Topic : Carbohydrates

TOPIC : CARBOHYDRATES

Q.1- Which of the following is a simple sugar or monosaccharide?

a) Galactose

b) Lactose

c)Maltose

d)Sucrose

Q.2- What is the molecular formula for Glucose?

a) CH3OH

b) C6H1206

c)C12H22O11

d)C6H12O5

Q.3- Maltose is composed of which two sugars?

a) Glucose and Glucose

b) Glucose and Galactose

c) Glucose and Fructose

d) Fructose and Galactose

Q.4- In which form Glucose is stored in animals?

a) Starch

b) Glycogen

c)Dextrins

d)Cellulose

Q.5-All are glucosans except-

a) Glycogen

b) Insulin

c)Starch

d)Cellulose

Q.6- Choose the Aldose sugar-

a) Sucrose

b) Ribulose

c)Fructose

d)Ribose

Q.7- Choose the ketotriose-

a) Glyceraldehyde

b) Erythrose

c) Dihydroxyacetone

d)Arabinose

Q.8- A pentose sugar present in the heart muscle is-

a) Xylose

b)Lyxose

c) Xylulose

d) Aldose

Q.9- α-D Glucose and β- D glucose are-

a) Epimers

b)Keto- Aldose Isomers

c)Anomers

d) Optical isomers

Q.10- All tests are negative for sucrose except-

a) Benedict

b) Seliwanoff

c)Barfoed

d)Osazone

Q.11- Glucose can have ————- isomers due to the presence of 4 asymmetric carbon atoms-

a) 4

b) 12

c) 8

d)16

Q.12- Galactose and Glucose are-

a) Epimers

b) Isomers

c)Anomers

d)Ketose- Aldose isomers

Q.13- The compounds having same structural formula but differing in configuration around one carbon atom are called-

a) Optical isomers

b) Stereo isomers

c) Anomers

d) Epimers

Q.14- What does the following equation represent?

α-D Glucose +112ο→+52.5 ο→ +19 οβ- D glucose

a) Stereoisomerism

b) Mutarotation

c) Opticalisomerism

d)Epimerization

Q.15- Thecarbohydrate of blood group substance is-

a) Fucose

b) Xylose

c)Lyxose

d)Fructose

Q.16- Dulcitolisa -

a) Sugar acid

b) Amino sugar

c) Deoxysugar

d) Sugaralcohol

Q.17- Which of thefollowing is a non reducing sugar-

a) Arabinose

b) Erythrose

c)Trehalose

d)Ribulose

Q.18- APolysaccharide formed by β1→4 Glycosidic linkages is-

a) Starch

b) Dextrin

c)Glycogen

d)Cellulose

Q.19-Invert sugaris-

a) Starch

b) Glucose

c)Fructose

d)Hydrolytic product of Sucrose

Q.20- Thepolysaccharide found in the exoskeleton of insects is-

a) Hyaluronic acid

b) Cellulose

c) Chitin

d)Chondrosamine

Q,21- Which of thefollowing is a polymer of fructose?

a) Inulin

b)Dextrin

c)Cellulose

d)Glycogen

Q.22- Adisaccharide produced on hydrolysis of starch is called-

a) Sucrose

b) Lactose

c)Maltose

d)Trehalose

Q.23- The typicalcyclical structure of Glucose is α and β D-

a) Glucopyranose

b) Glucoside

c)Glucofuranose

d)Glucosamine

Q.24- Which testcan be undertaken to differentiate between Glucose and Fructose?

a) Benedict

b) Molisch

c)Seliwanoff

d)Osazone

Q.25- Which of the following molecules is a carbohydrate?

a) C3 H7O2N

b) C13H26O2

c)C6H12O6

d)C20H40O2

Q.26- Which of the followingmonosaccharides is not an aldose?

a) Ribose

b) Fructose

c) Glucose

d)Glyceraldehyde

Q.27-Which of following is ananomeric pair?

a) D-glucose and L-glucose

b) α-D-glucose and β-D-glucose

c) D-glucose andD-fructose

d) α-D-glucose and β-L-glucose

Q.28- Which of the followingmonosaccharides is not a carboxylic acid?

a) Glucuronate

b) Gluconate

c) Glucose

d)Muramic acid

Q.29- From the abbreviated nameof the compound Gal (β 1 →4) Glc, we know that:

a) The glucose residue is the βanomer.

b) The galactose residue is at thenonreducing end.

c) C-4 of glucose is joined toC-1 of galactose by a glycosidic bond.

d) The compound is in its furanoseform

Q.30- The compound that consistsof ribose linked by an N-glycosidic bond to N-9 of adenine is:

a) A purine nucleotide.

b) A pyrimidine nucleotide.

c) Adenosine.

d) AMP

Acknowledgements