BIO 205 Infectious diseases & Epidemiology Questions and answers with accurate rationales(PASSED)

B IO 205: Infectious diseases &
Epidem iology Questions and
answ er s w ith accur ate
r ationales(PASSED)
mutualism - answer A relationship between two species in which both species
benefit


parasitism - answer A relationship between two organisms of different species
where one benefits and the other is harmed


commensalism - answer A relationship between two species in which one species
benefits and the other is neither helped nor harmed


pathogenicity - answer Ability to cause disease


virulence - answer degree of pathogenicity


normal microbiota - answer rganisms that colonize the body's
surfaces without normally causing disease


resident microbiota - answer Permanently colonize the host
Established during 1st months of life

, transient - answer Colonize host for short period of time
Do not persist in body (host defenses)


axenic areas - answer (normally without organisms)


•Blood


•Body fluids- (i.e. csf, joint, urine)


•Internal organs- (i.e. kidney, lung, spleen)


places where normal flora exist - answer - eyes
- mouth
- skin
- large intestine
- nose
-throat
- urinary
- genitals


probiotics - answer live microbes applied to or ingested into the body,
intended to exert a beneficial effect