Post on 23-Feb-2016
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MICROBES
The Virus Genetic material + Protein coat Geometric shapes Non -living, Reproductive machine
VillainsHIVHepatitisHerpes InfluenzaSmallpoxEbola
Infective PathwaysLytic
Virus recognizes cell begins cycle of infection immediately. (illness begins) (influenza, common cold, ebola)
LysogenicVirus “hides” in genetic material of host.
(provirus) Infective cycle is delayed & infection is harder to treat. (HIV, hepatitis, herpes)
http://www.youtube.com/watch?v=Ez-_wBriTTo&feature=related
Vaccines
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=zG4hX8TEkAAhttp://www.youtube.com/watch?v=SoF_eKtbonU&feature=related
BacteriaSmallest living organismSurvive in every environmentHelpful & harmful3 shapes, orientations
Spherical (Coccus)
Rod (Bacillus)
Helical (Spirillum)
Gram + / Gram -Staining technique used to help identify
bacterial floraGram + 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 nutrientsBoost immune system
Beneficial speciesAcidophilusL. casei
immunitas
Villains E. coli
0157 Botulinum Anthrax
Exposure ?Contaminated foodUnclean handsAnimal carriersWarfare
Protection ? WASH HANDS ! Clean / inspect food Clean, pest free living
area Vaccines Be alert
http://youtube.com/watch?v=4lmwbBzClAc&feature=related
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
BEWAREAntibiotic resistance 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
MRSAMethicillin Resistant Staphylococcus aureus
Page 468 - textDiagram, color and label the typical bacterium in your notes
Protists
Single cell critters (Protists)Eukaryotes (true nucleus, organelles)Base of food webBoth free living and parasitic
Protist Classification
Rhizopods (amoeba)
Ciliates (paramecium)
Sporozoans (malaria- Plasmodium)
Rhizopod Locomotion
Ciliate Locomotion
Flagellate Locomotion
VillainsEntameba histolytica (dysentery)Plasmodium (malaria)
PARASITIC PROTISTS
Protist Populations
MicrobesBoth helpful & harmful…Many that are harmful can be treatedAvoid contaminated food, waterVaccines when available !Common sense