Prokaryotes Flashcards
Prokaryotes
First life forms
Unicellular
No organelles
Plasma membrane is in folded
Pathogenic
Disease causing
Mutualistic
Aid in digestion
Commensalistic
Present, but little effect
3 shapes of bacteria
Bacillus- rod shaped
Coccus- spherical
Spirillum- cork screw
Phototrophic
Use light to produce food
Chemotrophic
Use chemicals to produce food (bacteria)
Heterotrophic
Consume organisms (eukaryotes)
Gram negative
Pink color- polysaccharide
Pathogenic (harder to kill)
Less peptidoglycan wall
Gram positive
Purple in color
Thicker peptidoglycan wall
4 Bacteria
PCCS
Proteobacteria
Chlamydiae
Cyanobacteria
Spirochetes
Proteobacteria
Origin of mitochondria
Reproduction- binary fission, circular chromosome contains DNA
Ex) E. Coli. Salmonella, gonorrhea, food poisoning
Chlamydiae
Endosymbiosis- live in cell of host
Cyanobacteria
Responsible for oxygen on earth
Performs photosynthesis
Nitrogen->ammoniag
Anaerobic and aerobic
Spirochetes
Axial filaments
T.pallidum=syphilis
Borellia= Lyme disease