Prokaryotes v. Eukaryotes

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Author:
DesLee26
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179344
Filename:
Prokaryotes v. Eukaryotes
Updated:
2012-10-23 13:17:11
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Bio
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Exam II
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  1. Cell type
    prokaryotic v. eukaryotic
  2. organism type
    • p: unicellular, colonial, filamentous, some multicellular (bacteria)
    • e: unicellular, colonial, filamentous, most multicellular (plants, fungi, animals, algae)
  3. avg. cell size
    • p: smaller 1-10 um
    • e: mostly larger (10-100 um)
  4. tissue formation
    • p: absent
    • e: present
  5. respiration
    • p: aerobic, anaerobic, switch hitters
    • e: aerobic, a few anaerobic
  6. plasma membrane
    both
  7. ECM
    • p: exctracellular capsule or slime layer
    • e: present around many animal cells, composed of oligosaccharides and glycoproteins; around plant cells composed of pectic compounds
  8. Cell wall
    • p: usually present (absent in mycoplasmas)
    • e: present in plant and funcgal cells; most algae (absent in animal cells)
  9. sub-cell organelles
    • p: mainly absent, except for ribosomes
    • e: present
  10. flagella
    • p: present or absent: tw types of proteins
    • e: present or absent; complex; composed of multiple microtubles and many other proteins
  11. genetic system:
    • p: DNA present, not associated with protein
    • nucleouid not membrane- bound (no nucleus)
    • one main molecule of DNA
    • there may be smaller pieces of DNA

    • e: DNA presnt, complexed with proteins in true chromosomes
    • membrane-bound nucleus
    • usually at least two DNA molecules
  12. cell division
    • p: binary fission
    • e: mitosis
  13. sexual system
    • p: unidirectional transfer of DNA fragments from donor to recipient, if present; no complete cell fusion; no meiosis
    • e: common; involves complete nuclear fusion of gametes containing equal number of chromosomes; involves meiosis

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