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UNIT 1: Archaebacteria, Eubacteria, Viruses and Protists

aurora.lawrence Biology credit Inglés 8 fichas

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1Diagram of Staphylococcus
2Diagram of Streptobacillus
3How is bacteria helpful?- makes food such as yogurt and cheese
- gut bacteria helps digest food
4Lytic cycle vs Lysogenic Cycle-Lyctic Cycle: - virus takes over the cell, only producing the parts to assemble the virus, not the parts necessary to keep the cell alive
- Lysogenic Cycle: - viral genes are incorporated into the host cells DNA, every time the host cell copies itself, a copy of the virus is made. Cell is kept alive
5Why are viruses difficult to classify?- Viruses are difficult to classify because they have DNA, adapt to their environment but aren't alive
6Why aren't viruses considered alive?- Viruses aren't considered alive because they arent made out of cells and can't reproduce on their own
7Viruses vs. Prokaryotes and Eukaryotes- Viruses don't reproduce on their own, prokaryotes and eukaryotes do through mitosis and meiosis
- Viruses have no organelles
- Prokaryotes and Eukaryotes are alive
83 Classifications of Protists and their Characteristics- Animal like, Plant like and Fungus like
- animal like: heterotrophs (captures and ingest food)
- Fungus like: heterotrophs (mostly feed on decaying matter)
- Plant like: autotrophs (produce their own food), contain chloroplast for photosynthesis