Microbiology Review EOG Review May 12-16. Microbe Small organism you can only see with a microscope Ex. Virus, bacteria, protist, protozoa.

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Presentation transcript:

Microbiology Review EOG Review May 12-16

Microbe Small organism you can only see with a microscope Ex. Virus, bacteria, protist, protozoa

Some microbes can be pathogens… Pathogen: something that causes a disease Ex. Virus, bacteria, parasite Remember: Not all microbes can cause disease. There’s good bacteria, too!

Virus Non-living pathogen Does not need to eat Needs a host cell to reproduce Prevention: VACCINE Treatment: Anti-viral meds (NOT antibiotics) Ex. Influenza, Common Cold (Rhinovirus), West Nile Virus, Ebola, HIV, Polio, Chicken Pox

Bacteria Living pathogen Prokaryote, single celled Found EVERYWHERE! 3 Shapes: Rod, Round, Spiral Treatment: Antibiotics Take all prescribed – or could become RESISTANT!

Bacteria cont. GOOD 1.Digestion 2.Help decompose 3.Bioremediation 4.Water Treatment (break down sewage) BAD Cause disease

Best Prevention WASH YOUR HANDS!!!!!!!!!!!!!!!!!!!

Protist/Protozoa Eukaryotic Cells 1. Paramecium – cilia (small hairs) 2. Amoeba – pseudopod (fake foot) 3. Volvox - colonies, flagella 4. Euglena – flagella (whip-like tail)

Fungi Eukaryotic Feeds off other organism Treatment: antifungal meds Ex. Athletes foot, Ringworm, Yeast Infection

How Diseases Spread Vector: Organism that spreads disease Carrier: human that has a disease whether they know it or not. Ex. Tick, mosquito, rat Ex. TYPHOID MARY, AIDS PAITENT

How Diseases Spread Epidemic Outbreak of disease in a community or region NOT over entire continent or world EX. PLAGUE Pandemic World-wide epidemic OR epidemic over whole continent EX. INFLUENZA OF 1918.

CELLS

Cells All living things have cells Prokaryotic: NO nucleus (Pro=No) Eukaryotic: YES nucleus (Eu=Yes)

Organelle: Parts of a cell Nucleus: control center Mitochondria: makes energy, Cellular Respiration Cell Membrane: “gate keeper,” surrounds cell Chloroplast: photosynthesis, only in plant cells

Mitosis vs. Meiosis Mitosis : Cell divides PMATC Makes 2 identical new cells Helps replace old cells Meiosis : Sex cell divides PMATX2 THEN C Makes 4 different gametes (sperm, egg)

Cancer Uncontrolled mitosis Cells divide out of control Caused by a mutation in cell DNA