The GOOD the BAD the UGLY WS-CDL: the GOOD the BAD the UGLY.
Good and Bad Microorganisms
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Transcript of Good and Bad Microorganisms
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Good and Bad Microorganisms
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Review
• What is the role of decomposers in the food chain?
• What are three differenttypes of decomposers?
VIDEO
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VIDEO
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Microorganisms
• Microorganisms are living things you cannot see without a microscope.
• Some are helpful while others are harmful.
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Helpful Microorganisms
• Bacteria live on and in our bodies and keep us alive!
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Helpful Bacteria
• Bacteria are used to make cheese and yogurt!
• Different types of bacteria cause different tastes!
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Helpful Fungus
• Mold is a type of fungus.
• A mold called penicillin is an antibiotic (medicine) we take to kill bad bacteria.
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Bad bacteria
Penicillin
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Helpful Fungus
• Yeast is another type of fungus.
• We use yeast when baking bread (releases CO2) and to make wine (creates ethanol).
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Harmful Microorganisms
• Some microorganisms make us very sick and destroy our food.
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Harmful Bacteria
• Some types of bacteria are responsible for sicknesses such as pneumonia and food poisoning.
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Harmful Fungus
• Fungus can cause things such as:
– Mold on food
– Athlete's Foot
– Dandruff
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What’s growing on you!?• Choose an area on your body where
you think a lot of microorganisms would grow.
• Take a swab of that area and rub it on the clear mixture in the bottle. Put your name on the bottle and place it on the window sill.
• Square out an area in your notes and explain why you think the body part you chose will have the most microorganisms.