Question: 91. Lecithin, a small molecular weight organic compound found in living tissues,
is an example of :
(1) Amino acids
(2) Phospholipids
(3) Glycerides
(4) Carbohydrates
Answer: Option (2)
Explanation:
Lecithin is a type of lipid that is commonly found in cell membranes of living tissues.
It is composed of glycerol, two fatty acid molecules, a phosphate group, and a nitrogen-containing compound such as choline.
Because lecithin contains a phosphate group along with lipid components, it is classified as a phospholipid.
Phospholipids are essential structural components of biological membranes, forming the lipid bilayer.
Hence, lecithin is an example of phospholipids.