6) Story of micro + debate of spontaneous generation

slide 10-12

Who was responsible for naming cells in 1665?

Robert Hooke, reminded him of prison cells

Ancestors of bacteria were the first life on Earth _ billion years ago

3.5

Who said cells arise from pre-existing cells in 1858

Rudolf Virchow

What is the cell theory?

All living things are composed of cells and come from preexisting cells

How was the preexisting cells idea developed?

Cells were found in ALL biological species

Who was the first person to observe live organisms under a microscope in 1668?

Anton van Leeuwenhoek

What is spontaneous generation?

The idea that living organisms arise from nonliving matter; “vital force” forms life

Who introduced the spontaneous generation?

Aristotle in 350 B.C

How long did the spontaneous generation stay unchallenged?

over 2000 years

What challenged Spontaneous generation?

Biogenesis

What is biogenesis?

The idea that living organisms arise from preexisting life