Question

Select the option that correctly identifies the chemical bonds present in the given biomolecules.

Biomolecules	Chemical bonds
A. Polysaccharides	1. Peptide bond
B. Proteins	2. Hydrogen bond
C. Fats	3. Glycosidic bond
D. Water	4. Ester bond

• A. A- 4, B- 1, C- 2, D- 3
• B. A- 3, B- 1, C- 4, D- 2
• C. A- 3, B- 4, C- 2, D- 1
• D. A- 2, B- 1, C- 4, D- 3

Answer 1

The correct option is B A- 3, B- 1, C- 4, D- 2

Polysaccharides, monosaccharides are linked together by glycosidic bond (C–O–C).

Water has hydrogen bonding.

Proteins are polymers of different amino acids, which are linked by peptide (CONH) bond formed by dehydration (polymerisation) between COOH group of one amino acid
and NH${}_2$ group of next amino acid with the removal of H${}_2$O.

The three hydroxyl groups of a glycerol molecule join with the carboxyl groups of three fatty acid molecules to form a fat or triglyceride molecule. The chemical linkage between the glycerol and fatty acids is called the ester bond.