Why is a cell called a structural and functional unit of life?

Cells are the basic building blocks of all living organisms. The human body is composed of countless number of cells, all with their own specialized function. read more

The cell has all the necessary components to produce life. Energy conversion systems, systems to synthesize macromolecules from smaller molecules, and systems to allow the replication of DNA, which has the blueprint for life. read more

So, cell is the basic structural unit for all unicellular and multicellular organisms. Some of the basic life processes or functions takes place in every cell to keep the organisms alive such as digestion, respiration, excretion, etc., whether it is a single-celled organism or multicellular organism. read more

the cell is, thus, a fundamental, structural and functional unit of living organism, just as atom is the fundamental unit in chemical structure. since all the activities of an organism are present in miniature form in each and every cell, it is, therefore, called the basic unit of life. read more