Microbes Microbes Microbe Another a microscopic organism word

Microbes

Microbes ÒMicrobeÉ Another a microscopic organism word for microorganism É Usually unicellular É Many different shapes É Carry out life functions in a wide variety of ways É Live in every type of environment on Earth

There are many different types of microbes, including…

Bacteria ÒDefined as: Single-celled organisms that have no nucleus.

Basic Characteristics Bacteria ÐLiving ÐUnicellular ÐMultiple shapes ÐSome are harmful & cause disease ÐSome are helpful & cure disease and break down decaying material 5

How it gets Energy Bacteria Ò Some bacteria can make their own energy through photosynthesis Ò Some bacteria must gain energy through eating other organisms (cellular respiration) 6

Spread Bacteria Ò How does this organism infect other organisms? É Contaminated foods, contaminates soil, contaminated water, contact with other organisms, etc. 7

Examples Bacteria Ò Strep Throat Ò Staph Infection Ò Food Poisoning Treatment of Disease Ò Antibiotics 8

Prevention of Disease Bacteria Ò Proper hand washing & hygiene, proper handling of food, cover your mouth when you cough, etc. Ò Any other? 9

Different Shapes Bacteria Means: Spherical Examples: v. Strep v. Pneumonia v. Staph v. MRSA 10

Different Shapes Bacteria Means: Rod-Like Examples: v. E-Coli v. Yogurt v. Diphtheria v. Tetanus v. Tuberculosis v. Leprosy 11

Bacteria Different Shapes Means: Spiral Examples: v. Cholera 12

Different Shapes Bacteria Means: Corkscrew Examples: v. Lyme Disease 13

Fungi ÒDefined as: Any of a group of spore-producing organisms “feeding” on organic matter ÒExamples: yeast, molds, & mushrooms

Basic Characteristics Fungi ÐLiving ÐUnicellular or Multicellular ÐMultiple shapes ÐSome are harmful & cause disease ÐSome are helpful & cure disease and break down decaying material 15

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Energy Fungi Ò Feed on organic matter Ò Decomposition reaction for use in cellular respiration 17

Spread Fungi Ò How does this organism infect other organisms? É Enters the body in multiple ways: ingestion, inhalation, contaminated soil, etc. Ð For example: Aspergillus spores are breathed in and Fungal Meningitis is injected with steroid shots Ò Examples of diseases caused by fungi: É Thrush, ring worm, yeast infections, athlete’s foot, and eye, lung, skin, hair, and nail infections 18

Fungi Examples Ò Athletes Food Ò Ring Worm Ò Mold Ò Yeast Infection Treatment of Disease Ò Antifungal medications 19

Prevention of Disease Fungi Ò Clean skin injuries Ò Wear a mask and/or gloves when working in damp and dusty areas Ò Proper hygiene 20

Virus ÒDefined Virus as: Non-living substance that has to inject its genetic material into a living host cell in order to reproduce.

Basic Characteristics Virus ÐNon-Living ÐUnicellular ÐMuch smaller than bacteria ÐMultiple shapes ÐHarmful & cause disease 22

Energy Ò Must Virus “use” the host cell to obtain energy 23

Virus Diseases Ò How does this organism infect other organisms? ÉA virus must infect the host cell to replicate É Viruses can enter the body through ingestion, inhalation, and injection Ò Examples of diseases caused by viruses: É AIDS, the common cold, the flu, herpes, chickenpox, H 1 N 1, etc. 24

Examples Virus Ò Influenza Ò AIDS Ò Common Cold Ò H 1 N 1 Treatment of Disease Ò Rest Ò Some antiviral medications are available Ò Prevention 25

Prevention of Disease Virus Ò Hygiene, proper hand washing Ò Vaccinations 26

Parasites ÒDefined Parasites as: An organism that lives in or on another organism (its host) and benefits by depriving nutrients at the host's expense.

Basic Characteristics Parasitez ÐLiving ÐUnicellular or Multicellular ÐMultiple shapes ÐHarmful & cause disease 28

Basic Characteristics Parasites Ò Host cell: the cells of the host organism, much like a virus must infect the host cell to multiply 29

Energy Parasites Ò Most “use” the host to obtain energy through cellular respiration Ò Some Protists obtain energy through photosynthesis 30

Parasites Diseases Ò How does this organism infect other organisms? É Enters the body through contaminated food Ð Protozoa (single celled organisms) and helminthes (flatworms, roundworms, etc. ) É Enters the body through vectors Ð Fleas, ticks, mosquiotos, etc. É Enters the body through contaminated food, soil, and water Ò Examples: fleas, ticks, tape worms, etc. 31

Diseases Continued… Parasites Ò Diseases É Giardia infections, toxoplasmosis, malaria, infections, etc. 32

Examples Parasites Ò Malaria Ò Ticks Ò Mistletoe Treatment of Disease Ò Prescription medications to kill parasite and to treat the infections 33

Prevention of Disease Parasites Ò Proper hand washing and hygiene, proper filtration of water, proper handling of food, etc. Ò Preventative medications 34