What is cell theory and who are the scientist that establish cell theory?

Answer 1

The Cell Theory is a basic principle of Biology. The cell itself was first discovered by Dr. Robert Hooke in the mid-1600s. During the early and mid parts of the 1800s, German scientists Schwann and Schleiden, and German physicians Virchow and Remak established that "1- cells were the basic unity of life; 2- all living organisms are made of cells; 3- cells develop from pre-existing cells". That is the theory. Why is it called a "theory"? Good question! - it is no more a theory than that of relativity, natural selection and evolution, etc. Note that the four gentlemen I mentioned earlier sometimes worked together, sometimes plagiarized each other . . .

Answer 2

Two German biologists M.J.Schleiden (1838) and Theodore Schwann (1839) proposed the cell theory (or cell doctrine), which unified the ideas prevailing at that period on the organisation in plants and animals.

cell theory

1. All organisms are composed of one or more cell, within which all life processes occur.

2. Cell are the smallest living things, the basic unit of organization of all organisms.

3. Cells arise only by division in previously existing cells.

Answer 3

In 1838, Jakob Matthias Schleiden ,a German botanist, first proposed the idea that all plants consist of cells. A year later, Theodor Schwann, a German zoologist, independently asserted that al animals and plants are made up of cells. This joint finding forms the basis of the cell theory. Later in 1855 R. Virchow refine the cell theory by presenting the idea that all clls arise from pre-existing cells.

Answer 4

The cell theory was formulated by Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow.