powerpoint-foreign-biologist-Autosaved.pptx

FOREIGN BIOLOGISTS

1. William Harvey - English Physician - Discovered mechanics of human blood circulation

2. Charles Darwin - Theory of Evolution and natural selection - Wrote a book entitled “Origin of Species” - Contributed some concepts in systema naturae of Carolus Linnaeus

3. Rudolf Virchow -Father of modern pathology - German medical naturalist who formulated the “cell theory”

4. Robert Hooke - Gave the name“CELLS ” for structures he saw under the microscope

5. Alexander Fleming - Scottish Bacteriologist - Discovered the “wonder drug” penicillin

6. Francis Crick -BRITISH BIOPHYSICIST - DESCRIBED THE DOUBLE HELIX STRUCTURE OF DNA

7. James Watson - AMERICAN BIOLOGIST - DESCRIBED THE DOUBLE HELIX STRUCTURE OF DNA

8. Gregor Mendel - AUSTRIAN MONK - FATHER OF HEREDITY AND VARIATION - FORMULATED BASIC LAWS OF INHERITANCE

9. Theodore Schwann -GERMAN PHYSIOLOGIST “HE STATED THAT ALL ANIMALS ARE MADE UP OF CELLS”

10. Matthias Schleiden - German Botanist -Cofounder with Theodore Schwann of the cell theory -He stated that all plants are made up of cells

11. Louis Pasteur - Known as the founder of microbiology  -discovered the role of bacteria in fermentation

12. Anton Van Leeuwenhoek - Dutch Naturalist - he devised the use of compound microscope which led to the discovery of bacteria and protozoa

13. Albert Sabin - American physician and virologist -discovered vaccines against polio virus

14. Robert Koch - German physician -He was famous in isolating bacteria - identified causative agent of tuberculosis Mycobacterium tuberculosis and Vibrio cholerae

15. CELL THEORY