MMSC428 Unit 6 PT 1
Final
(2026 Expert-Verified Final
Exam Q & A )
Latest Updated Version
(A+ Guaranteed )
, the organism benefits but there is no beneficial or Commensalism
harmful effect on the host
both organism and host benefit from one another Mutualism
the organism benefits at the expense of the host (host is Parasitism
injured through the activities of the organism)
an organism that depends completely on its host for obligate parasite
reproduction and survival (without a host it will eventually
die)
an organism that can exist in a free-living state or as a facultative parasite
commensal, and under the right circumstances may
become parasitic
parasite living within the host(e.g. malarial parasites) endoparasite
parasite living on body surface(s) of the host (e.g. ticks, ectoparasite
lice)
Definitive (primary) host organism where the parasite reaches adult stage and reproduces
Intermediate (secondary) host Host that harbors the larval, juvenile, immature, or asexual stages of the parasite
Delusional parasitosis delusion that one is infested w/insects, bacteria, worms, etc.
Tx: antipsychotic drugs
what types of infections are caused by protozoa? intestinal
extraintestinal
Amebae, flagellates, ciliates, & sporozoans are examples Protozoa
of what?
worms that cause intestinal and extraintestinal infections Helminths
Nematodes (roundworms), cestodes (tapeworms), & Helminths
trematodes (flukes)
1. Invasion damage to the host
2. Toxin secretion
3. Mechanical damage
4. Deprive host of vital nutrients
5. Hypersensitivity reaction to parasite proteins
6. Eosinophilia
These are mechanisms of what?
parasitic diseases are prevalent where? tropical
underdeveloped countrys
2026
Final
(2026 Expert-Verified Final
Exam Q & A )
Latest Updated Version
(A+ Guaranteed )
, the organism benefits but there is no beneficial or Commensalism
harmful effect on the host
both organism and host benefit from one another Mutualism
the organism benefits at the expense of the host (host is Parasitism
injured through the activities of the organism)
an organism that depends completely on its host for obligate parasite
reproduction and survival (without a host it will eventually
die)
an organism that can exist in a free-living state or as a facultative parasite
commensal, and under the right circumstances may
become parasitic
parasite living within the host(e.g. malarial parasites) endoparasite
parasite living on body surface(s) of the host (e.g. ticks, ectoparasite
lice)
Definitive (primary) host organism where the parasite reaches adult stage and reproduces
Intermediate (secondary) host Host that harbors the larval, juvenile, immature, or asexual stages of the parasite
Delusional parasitosis delusion that one is infested w/insects, bacteria, worms, etc.
Tx: antipsychotic drugs
what types of infections are caused by protozoa? intestinal
extraintestinal
Amebae, flagellates, ciliates, & sporozoans are examples Protozoa
of what?
worms that cause intestinal and extraintestinal infections Helminths
Nematodes (roundworms), cestodes (tapeworms), & Helminths
trematodes (flukes)
1. Invasion damage to the host
2. Toxin secretion
3. Mechanical damage
4. Deprive host of vital nutrients
5. Hypersensitivity reaction to parasite proteins
6. Eosinophilia
These are mechanisms of what?
parasitic diseases are prevalent where? tropical
underdeveloped countrys
2026
