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1.4 Microorganisms. Goals. Microorganisms are living things too small to see with just our eyes. We can use microscopes to see them. They are often made of one cell, but can be simple multi-celled organisms. They can be producers, herbivores, carnivores, or decomposers. Main types.
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Goals • Microorganisms are living things too small to see with just our eyes. • We can use microscopes to see them. • They are often made of one cell, but can be simple multi-celled organisms. • They can be producers, herbivores, carnivores, or decomposers.
Main types • Bacteria are some of the smallest microorganisms and can be helpful or harmful. • Protists are also helpful or harmful, but are larger than bacteria. • Because they are larger, they can often contain special structures for jobs and processes that bacteria do not.
ALGAE AMOEBA
Producers and consumers • Algae are protists in water that carry out photosynthesis. Are they producers or consumers? • Amoeba changes its body shape to move and surround food. Is it a producer or consumer? • Euglena have a tail to move, but can also perform photosynthesis during daylight.
End of the road • Many microorganisms also act as decomposers. • Fungi grow on plants such as trees that fall down. • Mold is a specific type of fungi that can grow on wood and even bread. • Bacteria also break down different nutrients from decaying matter.
Let’s get specific • Tooth bacteria – tooth decay • Bacteria in ticks – Lyme disease • Amoeba-like protists - dysentery • Protist in mosquitoes - malaria • Salmonella bacteria – food poisoning
