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