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Transcript 
MICROBES
The Virus

Genetic material + Protein coat
 Geometric shapes
 Non -living, Reproductive machine
Villains
 HIV
 Hepatitis
 Herpes
 Influenza
 Smallpox
 Ebola
Infective Pathways
 Lytic
Virus recognizes cell begins cycle of infection
immediately. (illness begins) (influenza, common
cold, ebola)
 Lysogenic
Virus “hides” in genetic material of host.
(provirus) Infective cycle is delayed & infection is
harder to treat. (HIV, hepatitis, herpes)
Vaccines
http://www.youtube.com/watch?v=Ez-_wBriTTo&feature=related
Heroes
 Variegated
leaves flowers
?
CONTROL

Vaccines


Temperate – harmless form of a virus is
injected
Live – small amts of
weakened virus
BOTH encourage the
immune system to
make antibodies.
http://www.youtube.com/watch?v=zG4hX8TEkAA
http://www.youtube.com/watch?v=SoF_eKtbonU&feature=related
Bacteria
 Smallest
living organism
 Survive in every environment
 Helpful & harmful
 3 shapes, orientations
Spherical (Coccus)
Rod (Bacillus)
Helical (Spirillum)
Gram + / Gram  Staining
technique used to help identify
bacterial flora
 Gram + flora = peptidoglycan in cell wall
(stain purple in crystal violet)
 Gram – flora = no ppg, turn pink when
safranin counter stain added.
Heroes !
 Help
digest food, absorb nutrients
 Boost immune system
Beneficial species
 Acidophilus
 L.
casei
immunitas
Villains
 E.
coli
0157

Botulinum
 Anthrax
Exposure ?
 Contaminated
food
 Unclean hands
 Animal carriers
 Warfare
http://youtube.com/watch?v=4lmwbBzClAc&feature=related
Protection ?

WASH HANDS !
 Clean / inspect food
 Clean, pest free living
area
 Vaccines
 Be alert
http://www.youtube.com/watch?v=tqOVYpkZ0qs
Treatment
•Alexander
Fleming
•1928 Penicillium notatum mold
•Killed bacteria in culture
•First Antibiotic – transformed treatment
of disease and infection
1. Misuse treatments for viral
infections or repeatedly for
bacterial infections
2. Not all bacteria are destroyed by
the antibiotic
3. Stronger, resistant bacteria
remain
4. More difficult to destroy the
bacteria when it infects again
Page 468 - text
Diagram, color and label the
typical bacterium in your notes
Protists
Single cell critters (Protists)
 Eukaryotes
(true nucleus, organelles)
 Base of food web
 Both free living and parasitic
Protist Classification

Rhizopods
(amoeba)
 Ciliates
(paramecium)
 Sporozoans
(malariaPlasmodium)
Rhizopod Locomotion
Ciliate Locomotion
Flagellate Locomotion
Villains
 Entameba
histolytica (dysentery)
 Plasmodium (malaria)
PARASITIC PROTISTS
Protist Populations
Microbes
 Both
helpful & harmful…
 Many that are harmful can be treated
 Avoid contaminated food, water
 Vaccines when available !
 Common sense
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