1. Bacteria

2. unicellular prokaryotes 2 Domains Achaea
Classification
unicellular prokaryotes
2 Domains
Achaea
Kingdom Archaebacteria (ancient)
found in marshes, swamps, hot sulfur springs, Great Salt Lake, deep ocean vents
Bacteria
Kingdom Eubacteria (true)
found in almost any habitat
Bacteria

3. Kingdom Archaebacteria cell walls without peptidoglycan (carbohydrate)
Classification
Kingdom Archaebacteria
cell walls without peptidoglycan (carbohydrate)
autotrophic or heterotrophic
live anaerobically
live in harsh environments (great salt lakes, hot springs)
ex: Methanogens (in digestive tract of animals), Halophiles (salt-loving)
Bacteria

4. Kingdom Archaebacteria cell walls without peptidoglycan (carbohydrate)
Classification
Kingdom Archaebacteria
cell walls without peptidoglycan (carbohydrate)
Bacteria

5. Kingdom Archaebacteria
Classification
Kingdom Archaebacteria
live in harsh environments (great salt lakes, hot springs)
Bacteria

6. cell wall contains peptidoglycan (carbohydrate)
Classification
Kingdom Eubacteria
cell wall contains peptidoglycan (carbohydrate)
autotrophic or heterotrophic
free living (ponds, streams, on dead organisms) or deadly parasites
ex: streptococcus, Escherichia coli, anabaena
Bacteria

7. ex: streptococcus, Escherichia coli, anabaena
Classification
Kingdom Eubacteria
ex: streptococcus, Escherichia coli, anabaena
Bacteria

8. Cell structure cell wall nucleic acid capsule flagella pili ribosomes
plasmid
Bacteria

9. Cell structure endospore
tough protein coat formed inside cell; used to survive harsh conditions
Bacteria

10. bacteria are classified according to: shape arrangement
Classifying Bacteria
bacteria are classified according to:
shape
arrangement
staining properties
Bacteria

11. Classifying Bacteria shape spherical rod spiral coccus/cocci
bacillus/bacilli
spiral
spirillum/spirilli
Bacteria

12. Classifying Bacteria arrangement pairs clusters chains diplo… staphlo…
strepto…
Bacteria

13. Classifying Bacteria
arrangement
Bacteria

14. thin layer of peptidoglycan stains pink gram stain positive
Classifying Bacteria
staining properties
gram stain negative
thin layer of peptidoglycan
stains pink
gram stain positive
thick layer of peptidoglycan
stains purple
Bacteria

15. ex: staphylococcus aureus saprophytic
Life processes
nutrition
heterotrophs
parasitic
ex: staphylococcus aureus
saprophytic
Bacteria

16. photosynthetic autotrophs energy from sunlight ex: anabaena
Life processes
nutrition
photosynthetic autotrophs
energy from sunlight
ex: anabaena
Bacteria

17. chemosynthetic autotrophs energy from chemicals ex: Nitrobacteria
Life processes
nutrition
chemosynthetic autotrophs
energy from chemicals
ex: Nitrobacteria
Bacteria

18. can not live in presence of O2 ex: botulism facultative anaerobes
Life processes
respiration
obligate aerobes
require O2 to live
ex: tuberculosis
obligate anaerobes
can not live in presence of O2
ex: botulism
facultative anaerobes
lives with or without O2
ex: E. Coli
Bacteria

19. split in two (asexual reproduction)
Life processes
reproduction
binary fission
split in two (asexual reproduction)
Bacteria

20. Life processes reproduction conjugation transfer of genetic
material to an
acceptor bacterium
sexual
Bacteria

21. buds form and produce new cells
Life processes
reproduction
spores
buds form and produce new cells
spores can survive a long time before “hatching”
Anthrax spores
Bacteria

22. Advantages of bacteria human intestine food production-
milk, buttermilk, yogurt, sour cream, cheese
ecology
decomposers
nitrogen fixation
producers
Bacteria

23. Disadvantages of bacteria diseases

24. Disadvantages of bacteria diseases
most bacteria affect host be producing toxins
endotoxin
toxic substance bound to cell wall
exotoxin
secreted substance toxic
treatment
antibiotics
medication used to help kill or assist immune system in destruction of bacteria
Bacteria