20 Assorted questions on Biomolecules: Carbohydrates.

20 Assorted questions on Biomolecules: Carbohydrates.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily drawn from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word Type Questions:

1.Name two trioses
A.Glyceraldehyde and dihydroxyacetone

2.Name a tetrose
A.Erythrose

3.What is the function of erythorose?
A. It forms a raw material for synthesis of anthocyanin and lignin.

4.What is the other name of fructose?
A.Fruit sugar / Levulose

5.Which sugar is the reserve food of brown algae?
A.Mannitol.(Itr is an alcohol of the sugar mannose)

6.Glucose is categorized as a monosaccharide. How would you classify cellobiose*?
A.disaccharide.
*Cellobiose is a disaccharide of Beta-D-Glucose and cannot be digeted by the human gut.

7.Which sugar is found in the germinating starchy seeds?
A.Maltose.

8.Maltose is prepared from starch by hydrolyzing it with the enzyme-----
A.Diastase.

9.Which mammal among the following has highest lactose content in milk?- Cow, goat, buffalo, human
A.Human

10.Name a trisaccharide.
A.Raffinose.
*It is made of Galactose+Glucose+Fructose

11.In which form is food passed through phloem of plants?
A.Sucrose.

12.What is the food storage polysaccharide in plants?
A.Starch.

13.What is known as 'animal starch'?
A.Glycogen.

14.In which plant is the amount of cellulose the maximum?
A.Cotton.

15.Which compuond derived from polysaccharides prevent the coagulation of blood in vessels?
A.Heparin.

16Name the monomer of chitin?
A.N-Acetyl glucosamine

17.Name a homopolymer of fructose?
A.Inulin*
*Mostly 25-50 units.Donot confuse with 'insulin'- it is a hormonal protein.

18.The infant brain requires a lot of ----- as a metabolic substrate/
A.Glucose.

19.What are the two fractions of starch?
A.Amylose and Amylopectin.

20.Name two structural Poly saccharides?
A. Chitin and Cellulose.

If you need more help:
http://www.indiastudychannel.com/resources/60675-Assorted-questions-Plant-Morphology-Leaf.aspx
http://www.indiastudychannel.com/resources/60670-Assorted-questions-Biomolecules-Lipids.aspx
http://www.indiastudychannel.com/resources/60674-Assorted-questions-Viruses.aspx
http://www.indiastudychannel.com/resources/60671-Assorted-questions-Plant-Morphology-Fruits.aspx
http://www.indiastudychannel.com/resources/60669-Assorted-questions-Bio-molecules.aspx
http://www.indiastudychannel.com/resources/60668-Assorted-questions-Muscular-System.aspx