Glycosidic Bond

Q.

The glycosidic bond formation does not :

1. Involve the interaction of the H atom of one monosaccharide and the OH of another monosaccharide

2. involve addition of water molecule

3. Leads to the formation of a polysaccharide/oligosaccharide

4. Leads to the release of water molecule

Q. A bond is formed when an aldo- or keto- group in a sugar molecule combines with a hydroxyl group in another sugar unit.

1. peptide
2. glycosidic
3. keto
4. glyceride

Q.

Illustrate a glycosidic, peptide and a phosphodiester bond.

Q. Match the items listed in column I with column II and mark the correct option.

Column I	Column II
a. Glycosidic bond b. Tertiary structure c. Biuret test d. Single alphabet code 'P'	(i) Protein detection (ii) Dehydration reaction (iii) Formation of catalytic site (iv) Proline

1. a - (iii), b - (iv), c - (ii), d - (i)
2. a - (ii), b - (iii), c - (i), d - (iv)
3. a - (i), b - (ii), c - (iv), d - (iii)
4. a - (iii), b - (ii), c - (iv), d - (i)

Q. Identify the substances having a glycosidic bond and peptide bond, respectively in their structure.

1. Cellulose, lecithin
2. Glycerol, trypsin
3. Inulin, insulin
4. Chitin, cholesterol

Q. In a disaccharide monomers are linked with each other through .............

1. Hydrogen bonds
2. Ester bonds
3. Glycosidic bonds
4. Peptides bonds

Q. Glycosidic bonds exist in DNA molecule between

1. Sugar and nitrogen base
2. Purines and pyrimidines
3. Any two nitrogen bases
4. Sugar and phosphate

Q. Which of the following bond connects nitrogen bases to pentose sugar?

1. Phosphodiester bond
2. Glycosidic bond
3. Hydroxyl bond
4. Carbon bond

Q. The type of linkage present in carbohydrates is

1. Peptide
2. Glycosidic
3. Amide
4. Phosphate bonds

Q. Formation of both peptide and glycosidic bonds involves

1. Esterification
2. Hydration
3. Dehydration
4. Acidification