Biology

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Created by:

ashwellev  on October 23, 2011

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chapter 7.1-7.2

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Biology

biogenesis
all life forms must come from existing life
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biogenesis all life forms must come from existing life
abiogenesis life may arise from non living matter
louis Pasteur came up with pasteurization which made people sick
Anton Von Leeuwenhoek invented the microscope in the late 1600
Cell theory cells are the basic unit and function in living organisms
Cell classification? -all cells come from pre-existing life
-all living organism are composed of one or more cells
electron microscope to use the specimen must be dead so because to use this type of microscope the it must be dead
Prokaryotic cells -lack membrane bond organelles and nucleas
-lacking mitochondria
-tend to be from .1-10um in size
Eukaryotic cells - Have cell membrane and have nucleuse and mitochondria
-from 10-100 um in size
Different types of Prokaryotic cells -Bacillus
-coccus
-spirillum
Bacillus Rod shaped cell
coccus A spherical based shell
spirillum a spirill based cell
Endosymbiotic Prokaryotic cells live in a symbiotic relationship but soon after one engulfs the other

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