BIO- Important People

Question 1

Virchow

Answer 1

• biogenesis – where a cell exist, there must be a pre-existing cell
• debunked Schwan + Schleiden – bone cells can be developed from cartilage

Question 2

Pasteur

Answer 2

• studied fermentation

- put micro-organisms in broth and they produced more organisms

Question 3

Reidi

Answer 3

tested the theory of spontaneous generation

maggot experiment

Question 4

Aristotle

Answer 4

Spontaneous Generation

-life forms arise from non-living matter

Question 5

Peter Boysen-Jensen

Answer 5

• tested Darwin’s theory
• cut tips of plants off – place a block of gelatin or mica and replaced the tips

GELATIN - prevented plant cells to contact each other

             - but chemicals could diffuse
             - bent towards light

MICA - did not diffuse
-did not respond to the light, grew straight up