explain the cell theory
-cell is the smallest structural unit of life,which means that all living organisms are made up of cells
-cells are the functional unit of life,which means that they control the various processes in an organism such as digesting,storing energy etc
-cells arise from pre-existing cells through cell division
which scientists proposed the cell theory?
Matthais schleiden-said that cells plants are made up of millions of cells which perform various life processes[1838-39]
Theodore Schwann-added on to MS theory stating that all plants and animals are composed of cells,which serve the units of structure and function [1838-39]
Rudolph virchow-said that all cells arise from pre existing cells[1858]
why are cells generally small
-for rapid communication
-for greater diffusion of substances in and out
