Form- coccus, bacillus, spiral; aggregates/colonies
-No membrane-bound organelles
-Plasma Membrane
-dif Cell walls: Gram Staining
Gram Positive (purple stain, simpler walls, peptidoglycan)
Gram-negative (stains red, complex walls, less peptidoglycan, lipopolysaccharides)
Autotroph || Heterotroph
C inorganic | organic
Phototroph | Chemotroph
E source Light | molecules
ex: Chemoheterotroph (E. coli) ; Photoautotroph (cyanobacteria)
-Attachments: substrate, colony formation
by fimbriae & pili
Flagella rotate,motor
Passive gliding
Reproduction by binary fission.
Mutations rare but accumulates quickly in prokaryotes
Recombinations: transformation, transduction, conjugation
Survival: Endospore formation
-Biofilms
-Quorum Sensing