Bio 204 Lecture 1
1. First person to observe single celled organisms: Antonie van leeuwenhoek
2. Lazzaro Spallanzani: showed that a sealed flask of meat broth sterilized by boiling failed to grow microbes
3. Four main classes of microbes: archaea, bacteria, eukaryotes, viruses
4. archaea: Prokaryote, related to bacteria, don't cause disease
5. Bacteria: Prokaryotes, found in all environments, some cause disease
6. Viruses: Noncellular microbes, genetic material enclosed within a protein shell, requires a host cell
7. Eukaryotes: Includes protists (protozoa and algae, and fungi, some cause disease
8. how are eukaryotes and prokaryotes different?: Prokaryotic microbes lack a nuclear mem-
brane
Eukaryotic microbes have a distinct, membrane-enclosed nucleus
9. Prokaryotes: Single-celled organisms without a nucleus.
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1. First person to observe single celled organisms: Antonie van leeuwenhoek
2. Lazzaro Spallanzani: showed that a sealed flask of meat broth sterilized by boiling failed to grow microbes
3. Four main classes of microbes: archaea, bacteria, eukaryotes, viruses
4. archaea: Prokaryote, related to bacteria, don't cause disease
5. Bacteria: Prokaryotes, found in all environments, some cause disease
6. Viruses: Noncellular microbes, genetic material enclosed within a protein shell, requires a host cell
7. Eukaryotes: Includes protists (protozoa and algae, and fungi, some cause disease
8. how are eukaryotes and prokaryotes different?: Prokaryotic microbes lack a nuclear mem-
brane
Eukaryotic microbes have a distinct, membrane-enclosed nucleus
9. Prokaryotes: Single-celled organisms without a nucleus.
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