Identify the substances having glycosidic bond and peptide bond, respectively in their structure
- Glycerol, trypsin
- Cellulose, lecithin
- Inulin, insulin
- Chitin, cholesterol
Answer
(3) Inulin, insulin
Solution
As per NCERT, in a polysaccharide the individual monosaccharides are linked by a glycosidic bond, and in a protein the amino acids are linked by a peptide bond.
Inulin is a polymer of fructose (glycosidic bonds); insulin is a protein (peptide bonds).
Glycerol is a trihydroxy alcohol (no glycosidic bond); lecithin is a phospholipid and cholesterol is a steroid (no peptide bond).
The correct pair is inulin, insulin.
Answer: (3)