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PRIMITIVE CELL (MICROBIOLOGY
The science of the very small (CELL…
PRIMITIVE CELL
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COMPLEX
Characteristics of Eukaryotes
Clearly defined Nucleus
Membrane bound organelles
Those with cell wall, contain no peptidoglycan
Cell division by mitosis
Presence of histones in DNA No. of chromosomes, more than one
Cell membrane composition contains sterols Usually multicellular
Cell size 10-100 um
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SIMPLE
Characteristics of Prokaryotes
No Nucleus (Nuclear area)
No membrane bound organelles
Cell wall, contains peptidoglycan
Cell division by binary fission
No presence of histones in DNA
No. of chromosomes, usually one
Cell membrane composition lacks sterols (except Mycoplasma)
Usually unicellular
Cell size 1-5 um
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UNIVERSE
13.8bn yrs
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