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Prokaryotes
- No membrane bound nucleus
- Single circular chromosome
- No membrane bound organelles
- Distinct cell wall
- Bacteria and Archaea are prokaryotic
-
Eukaryotes
- Membrane bound nucleus and organelles
- Several linear chromosomes
-
Bacterial Morphology
- Bacillus-Rod Shaped
- Cocci-Spherical
- Spirilla-Spiral
-
Gram-Negative
- More complex cell wall
- Thin peptidoglycan cell wall layer
- Outer lipopolysaccharide layer
- Retain SAFRANIN
- Appear RED/PINK
-
Gram-Positive
- Simple cell wall
- Thick peptidoglycan cell wall layer
- No outer lipopolysaccharide layer
- Retain CRYSTAL VIOLET, IODINE
- Appear BLUE/PURPLE
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