Difference between Prokaryotes and Eukaryotes

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Author:
BrigittaLis
ID:
63649
Filename:
Difference between Prokaryotes and Eukaryotes
Updated:
2011-02-02 20:42:58
Tags:
cells
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Description:
Difference between Prokaryotes and Eukaryotes
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  1. Genetic Material
    • Prokaryote: Usually found in a single circular chromosome
    • Eukaryotes: Found in paired chromosomes
  2. Location of Genetic Material
    • P: Nuclear region (nucleoid)
    • E: Membrane-enclosed nucleus
  3. Nucleolus
    • P: Absent
    • E: Present
  4. Histones
    • P: Absent
    • E: Present
  5. Extrachromosomal DNA
    • P: In plasmids
    • E: In mitochondira and plasmids
  6. Mitotic Spindle
    • P: Absent
    • E: Present
  7. Plasma Membrane
    • P: Lacks sterols (cholesterol)
    • E: Contains sterols
  8. Internal Membrane
    • P: Only in photosynthetic organisms
    • E: Numerous membrane-enclosed organelles
  9. Endoplasmic Reticulum
    • P: Absent
    • E: Present
  10. Respiration (ATP)
    • P: At cell membrane
    • E: In mitochondria
  11. Golgi
    • P: Absent
    • E: Present
  12. Lysosomes
    • P: Absent
    • E: Present
  13. Peroxisomes
    • P: Absent
    • E: Present
  14. Ribosomes
    • P: 70S
    • E: 80S in cytoplasm and on endoplasmic reticulum, 70S in mitochondria
  15. Cytoskeleton
    • P: Absent
    • E: Present
  16. Cell Wall
    • P: Peptidoglycan, LPS and teichoic acid
    • E: None in most eukaryotic cells; chitin in fungal cells
  17. External Layer
    • P: Capsule or slime layer
    • E: None in most eukaryotic cells; pellicle or shell in certain parasites
  18. Cilia
    • P: Absent
    • E: Present in certain cell types
  19. Pili
    • P: Present
    • E: Absent
  20. Flagella
    • P: Present
    • E: Present in certain cell types
  21. Cell Division
    • P: Binary Fision
    • E: Mitosis or Meiosis
  22. Reproduction Mode:
    • P: Asexual
    • E: Sexual or Asexual

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