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8 Cards in this Set
- Front
- Back
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Importance of Hooke & van Leeuwenhoek?
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Hooke: living thing are made of boxes or cells
Leeuwenhoek: described live microorganisms |
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Sponataneous generation vs. Biogenesis
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Spontaneous generation:
•organism generated from non living matter •vital form of life Biogenesis: •organisms arise from preexisting life forms. |
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what evidence supports spontaneous generation?
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1886... when no maggots appeared in covered jar , maggots appeared in open jar
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John Needhams contribution
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Put heated nutrient broth in a sealed flask. Microbial growth occurred.
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Lazzaro Spallanzani's contribution
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Heated nutrient solution heated and placed into a flask and sealed.
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Louis pasteur contribution
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placed in flask heated then sealed... microbial growth occurred.
Nutrient broth placed in a flask heated then sealed... no microbial growth. |
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How was spontaneous generation disproven?
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Louis Pasteur's experiment that shows the sealed flask did not have any growth and the not sealed did.
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whats is the cell theory?
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Living organisms are made from cells
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