Welcome to Biochemistry MCQ (Multiple Choice Questions) examinations zone. These questions are designed based on the Topic “Carbohydrates”.  Recently I have posted one article on Carbohydrates and Biochemistry video lecture also. Before going to start this test please verify my previous biochemistry study materials in this blog.

carbohydrates MCQ online examination

Carbohydrates MCQ Online Examination- Part 1

1. “Lobry de Bruyn Alberda Van Ekenstein transformation” is the reaction of ….
A. Glucose with mild alkali
B. Lactose with enzyme
C. Starch with iodine
D. Sucrose with dil acid

2. The red precipitate formed when glucose is heated with “Benedict’s reagent” is…
A. Cuprous hydroxide
B. Cupric oxide
C. Cupric hydroxide
D. cuprous oxide

3. One of the following will answer the “Molisch test”…
A. Protein
B. Mucoproteins
C. Lipids
D. Flavoproteins

4. Majority of the monosaccharides found in the human body are of …
A. DL-types
B. L-type
C. D-type
D. None of the above

5. Digitonin is a ….
A. Glycoside
B. Lipid
C. Protein
D. Alkaloid

6. One of the following does not have Sulfuric acid groups…
A. Heparin
B. Chondroitin sulfate
C. Hyaluronic acid
D. Kerato sulfate

7. Simplest carbohydrate is ….
A. Glyceraldehyde
B. Gulose
C. Glucose
D. Dihydroxyacetone

8. The following Sugar exhibits inversion of optical rotation on heating with dilute acid ….
A. Fructose
B. Lactose
C. Sucrose
D. Glucose

9. Fermentation is the degradation of complex organic substances into simpler ones by the activity of living cells through the agency of ….
A. Acid
B. Oxidizing substances
C. Enzymes (Zymase)
D. Alkali

10. “Concept of tetrahedral carbon atom” is first introduced by …
A. Tarnet
B. Van’t Hoff and Le Bel
C. Bayer
D. None of the above

11. The reagent used for distinguishing a reducing monosaccharide from a reducing disaccharide is …
A. Fehling’s reagent
B. Selwinoff’s reagent
C. Benedict’s reagent
D. Barfoed’s reagent

12. The undermentioned compound is an acid mucopolysaccharide….
A. Dicumarol
B. Glycogen
C. Hyaluronic acid

13. In carbohydrates special functional groups are present in the given following:
A. Aldehyde & Ketone groups
B. Carboxyl groups & Others
C. Alcohol & Carboxyl groups
D. Hydroxyl groups & Hydrogen groups

14. The end product of hydrolysis of “Starch” by amylase is …
A. Maltose
B. Dextrins
C. Soluble starch
D. Glucose

15. One of the following has reducing properties…
A. Glucaric acid
B. Glucuronic acid
C. Mucic acid
D. Gluconic acid

16. Which biomolecules simply refer as “Staff of life” in the given….
A. Protein
B. Lipids
C. Vitamins
D. Carbohydrate

17. Example for “Fructosan” is ……..
A. Chitin
B. Cellulose
C. Starch
D. Inulin

18. Turanose is …
A. a deoxy sugar
B. Reducing disaccharides of glucose and fructose
C. Non reducing disaccharide
D. 7-methyl sugar

19. Examples of Epimers….
A. Glucose, Galactose, and Mannose
B. Mannose & Fructose
C. Glucose & Ribose
D. Gulose & Galactose

20. Fructose and Glucose can be distinguished by …
A. Fehling’s reagent
B. Selwinoff’s reagent
C. Benedict’s reagent
D. Barfoed’s reagent

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