HSS 1100 Lecture Notes - Lecture 4: Mycoplasma, Listeriosis, Microbiology

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 1100
• Professor: Franco Pagotto

Document Summary

Immunology: study of our protection from foreign macromolecules or invading organisms and our responses to them. Viruses/ chlamydia (grow only in living cells) Small (microscopic: 1-2 microns (1mm = 1000 microns, address them by their proper names, correct wat to address these (cid:1688)germs(cid:1689) underline the whole. Word for marks: listeria monocytogens species, listeriae, listeriosis. Viruses: nucleic acid (either rna or dna . Never both!: surrounded by protein shell (capsid, attach, inject nucleic acid (penetration), highjack synthetic processes inside cells to make more viruses, package, get out while going is good. Bacteria: rigid cell wall to keep things in place, genetic material circular chromosome, no nucleus (nucleoid, both dna and rna, binary fission. ** some bacteria do not have a rigid cell wall and are more fragile (ex. Gi-tract: colon is inhabited by anaerobes and coliforms. Mechanical barriers: skin, saliva, mucous, tears, hair, etc. Toxin production (destroy some of our defenses.