Uw microbiology 301 exam - Study guides, Class notes & Summaries

Lack a nucleus or membrane bound organelles, usually unicellular. Smaller and simpler than most eukaryotic cells. Contain two types of domain Bacteria and Archaea. - ANSWER Prokaryotic cells Ridged cell wall contains peptidoglycan. Includes a nucleoid (no nucleus) with no membrane- bound organelles. Multiply by binary fission - cell enlarges then divides - ANSWER Bacteria Bacterial shapes: Coccus Rods (bacillus) Coccobacillus Vibrio Spirillum Spirochete - ANSWER - Coccus - spherical ...

A virion (viral particle) is composed of - ANSWER protein, either RNA or DNA, and possibly lipid Capsid - ANSWER the protein coat of a virion it protects the nucleic acid from enzymes and toxic chemicals in the environment Enveloped viruses - ANSWER Contains a lipid bilayer Acquire their enveloped from the cytoplasmic membrane of the host cell Acquire the envelope from the membrane of an organelle in eukaryotic infections Non-enveloped viruses - ANSWER viruses that don't contain an envelo...