Question

Which best describes the cell theory? Scientists know all there is to know about cells, so the cell theory will not change. As technological advancements are made, the cell theory may change. A theory, once formulated, cannot be changed. The development of a synthetic cell has caused the cell theory to change.

Answer 1

cell theory was proposed by 2 German scientist M J Schleiden and T Schwann
later it was modified by Virchow . the cell theory states that
All organisms are compost of either cells or cell products .
Cell is the basic functional unit of life.
All cells arise from pre existing cell.

Answer 2

Basically cell theory was established by Theodor Schleider and Matthias Schwann in 1839, and he states that ;

• The cell is the structural and functional unit of life.
• All organism are composed of one or more cells.
• New cells comes from pre-existing cells
• Heriditary information passes from parents cell to child.
• All cells have the same basic chemical structure.
• The fundamental biochemical reaction of life takes place within the cells.