HSS 1100 Midterm: Review Midterm 1

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

Document Summary

Viruses have either rna or dna and are often covered by a capsid. Bacteria have dna and rna and a rigid cell wall, and can be gram positive or gram negative in terms of cell wall. What are some instances when transient bacteria may come into play? (resident flora take up space that pathogenic bacteria could otherwise inhabit, they do not necessarily harm humans and can actually aid in digestion in the gi tract. Transient bacteria appear in lower quantities and may multiply if resident flora populations diminish: list some mechanical barriers of the human body. (skin, mucous, hair, sweat, describe the complement system. The complement system is a set of circulating proteins in the blood. When combined with an antibody, complement is able to make pathogens more attractive to the immune system, specifically phagocytes. Exo is thermolabile, endo is thermostable: describe bacteraemia. Bacteraemia is a type of septicaemia in which bacteria is present in the bloodstream.