Good and Bad Microorganisms

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Presentation transcript:

Good and Bad Microorganisms

VIDEO

Microorganisms Microorganisms are living things you cannot see without a microscope. Some are helpful while others are harmful.

Helpful Microorganisms Bacteria live on and in our bodies and keep us alive!

Helpful Bacteria Bacteria are used to make cheese and yogurt! Different types of bacteria cause different tastes!

Helpful Fungus Mold is a type of fungus. A mold called penicillin is an antibiotic (medicine) we take to kill bad bacteria.

Bad bacteria Penicillin

Helpful Fungus Yeast is another type of fungus. We use yeast when baking bread (releases CO2) and to make wine (creates ethanol).

Harmful Microorganisms Some microorganisms make us very sick and destroy our food.

Harmful Bacteria Some types of bacteria are responsible for sicknesses such as pneumonia and food poisoning.

Harmful Fungus Fungus can cause things such as: Mold on food Athlete's Foot Dandruff