All of the following act as cell adhesion molecules, EXCEPT:: (A) Integrin, (B) Selectin, (C) Cadherin, (D) Lecithin
Answer is D. Most adhesion proteins, also called CAMs (cell adhesion molecules), can be classified into four main families: immunoglobulin family CAMs, cadherins, integrins, and selectins. Ref: Robbins 8th edition, Chapter 3.