Comparing viruses, protists, bacteria, and
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Comparing Viruses, Protists, Bacteria, and Fungi Mr. Johnston Saigon South International School
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Transcript of Comparing viruses, protists, bacteria, and
Comparing Viruses, Protists, Bacteria, and Fungi
Mr. JohnstonSaigon South International School
Viruses: Non-living, attach themselves to a host cell’s outer proteins to reproduceEBOLA AIDS
Which is a more effective virus?
Bacteria:
Reproduction
Food intake Prokaryotes
Shapes
Needs….
Sexually or asexually ( Binary Fission or conjugation)
Heterotrophs or autotrophs
No nucleus, but may have a flagellum
Rods, cones, spirals Oxygen to break
down their food. This is called “Cellular Respiration”
Some common bacteria shapes:
What are bacteria good for?
Oxygen and food production (try samples)
Health maintainence and health production
Environmental Cleanup and recycling Did you know?-Most bacteria are
helpful in fighting off bad bacteria, or do not harm you at all!
Protista
Cell structure Food intake
Mobility
Four groups:
Eukaryotes Heterotrophs and
autotrophs Some can move,
others can’t.
Protozoans with pseudopods, protozoans with flagella, protozoans with cilia, protozoans that are parasites
Types of Protozoans
Fungi
Food intake Function in
ecosystem Reproduces
Heterotrophs Decomposer Spores
Parts of Fungi (Mushrooms) Hyphae Stalk Head Underground
Hypae
Group investigation
Observe the samples in your petri dish. Are they bacteria, protists, or fungi? What is your evidence? Can you make out any parts that distinguish them from one another?
