4/2025
1 Dr. KRIM M.
Chapter N?1
Overview of cell biology
1.It is the smallest structurally and functionally viable entity 
that possesses distinctive characteristics such as assimilation and self-reproduction.Cell definition
Cell as the morphological and physiological unit of life serves as the fundamental building block 
shared among all living organisms.The study of cell biology originated in the 17th century largely propelled by advancements in 
microscopy.Consequently, the cell constitutes the fundamental unit for biological and biochemical activities.