MEDRADSC 1B03 Study Guide - Midterm Guide: Antibody, Mutation, Egg Cell
14 May 2019
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Viruses: small intracellular parasites that require a living host cell for replication. Latent stage: some viruses enter host cells but don"t replicate until later. Mutate: viruses tend to change slightly during replication (makes it difficult for antibodies or vaccines to work on viruses) Chlamydia, rickettsiae and mycoplasma: similar to both bacteria and viruses, divide by binary fission (like bacteria) but need a host cell to replicate (like viruses) Chlamydia: common std, uses host cell to replicate, causes pid (pelvic inflammatory diseases) and sterility in females. Once it"s in the host cell, it turns into rb. Rb: reticulate bodies (allows chlamydia to replicate using. Reckettsiae: gram negative bacteria, lives inside host cell, transmitted by insect vectors (lice/ticks) Mycoplasmas: lack cell wall (not affected by antibiotics), common cause of pneumonia. Fungi: reproduce via spore formation: eukaryotic, yeast/molds, have a cell wall, mainly beneficial (cheese and yogurt) found everywhere (soil/air/water/humans/food) Helminths- worms: not microorganisms, but are parasitic, eukaryotic, multicellular, common north american:
