Human Parasitology Exam 1 Questions
With Correct Answers
taxonomic distribution of disease - ANSWER✔✔✔-Bacteria 38%
| | | | | | |
Helminths and Protoazoa 25% | | |
Fungi 22% |
Virus 15% |
symbiosis - ANSWER✔✔✔-close association of organisms of different
| | | | | | | |
species
commensalism - ANSWER✔✔✔-one symbiont benefits, the other is
| | | | | | | |
neither harmed nor benefitted
| | |
+/0
both survive independently
| |
ex: cattle egrets and cattle
| | | |
phoresis - ANSWER✔✔✔-no physiological dependence, phoront is
| | | | | | |
carried
+/0
ex: algae on a turtle
| | | |
,mutualism - ANSWER✔✔✔-both benefit
| | |
+/+
ex: termites eat wood but they dan't digest it, protists in their gut
| | | | | | | | | | | | |
contain cellulase that can digest it
| | | | |
(obligatory)
exploitation - ANSWER✔✔✔-+/- | |
Predator Prey |
Parasitoid
Micropredator
Parasite
Predator/Prey - ANSWER✔✔✔-predator kills many prey| | | | |
ex: lion eating giselle
| | |
+/-
Parasitoid - ANSWER✔✔✔-only 1 host attacked and killed
| | | | | | |
adult female wasp deposits eggs in/on an insect and the larva hatch and
| | | | | | | | | | | |
consume the host
| | |
+/-
,micropredator - ANSWER✔✔✔-attack more than one organism but
| | | | | | | |
rarely kills it
| |
blood feeders like mosquitos and leeches
| | | | |
+/-
parasite - ANSWER✔✔✔-only one host attacked but rarely killed,
| | | | | | | | |
parasite benefits and host can be harmed
| | | | | |
+/-
definition of a parasite - ANSWER✔✔✔-lives in or on the host, part or
| | | | | | | | | | | | |
all of nutrients from host, smaller than host, greater reproductive
| | | | | | | | | |
potential than host, potential to harm the host
| | | | | | |
what organisms are parasites - ANSWER✔✔✔-helminths (cestodes,
| | | | | | |
trematodes, nematodes), protozoa, arthropods
| | |
what organisms are not parasites - ANSWER✔✔✔-bacteria, viruses,
| | | | | | | |
fungi
ectoparasite - ANSWER✔✔✔-lives or feeds on host surface
| | | | | | |
endoparasite - ANSWER✔✔✔-lives inside host
| | | |
, obligate parasite - ANSWER✔✔✔-must be parasitic for at least part of
| | | | | | | | | | |
the lifecycle, unable to grow outside of a living host
| | | | | | | | |
faculative parasite - ANSWER✔✔✔-an organism that may resort to
| | | | | | | | |
parasitic activity, but does not absolutely rely on any host for
| | | | | | | | | | |
completion of its life cycle | | | |
definitive host - ANSWER✔✔✔-the host in which the sexual
| | | | | | | | |
reproduction of a parasite takes place | | | | |
intermediate host - ANSWER✔✔✔-Host from which the larvae derive
| | | | | | | | |
their nourishment, do not reach sexual maturity
| | | | | |
distribution of parasites in host population - ANSWER✔✔✔-negative
| | | | | | | |
binomial
a few hosts are heavily infected and killed while most have a few and
| | | | | | | | | | | | | |
are not killed
| |
direct life cycle - ANSWER✔✔✔-No intermediate host, parasite
| | | | | | | |
transmits from one DH to another | | | | |
through air, food, fomite | | |
indirect life cycle - ANSWER✔✔✔-Has an intermediate host, can't go
| | | | | | | | | |
directly from DH to DH
| | | |
With Correct Answers
taxonomic distribution of disease - ANSWER✔✔✔-Bacteria 38%
| | | | | | |
Helminths and Protoazoa 25% | | |
Fungi 22% |
Virus 15% |
symbiosis - ANSWER✔✔✔-close association of organisms of different
| | | | | | | |
species
commensalism - ANSWER✔✔✔-one symbiont benefits, the other is
| | | | | | | |
neither harmed nor benefitted
| | |
+/0
both survive independently
| |
ex: cattle egrets and cattle
| | | |
phoresis - ANSWER✔✔✔-no physiological dependence, phoront is
| | | | | | |
carried
+/0
ex: algae on a turtle
| | | |
,mutualism - ANSWER✔✔✔-both benefit
| | |
+/+
ex: termites eat wood but they dan't digest it, protists in their gut
| | | | | | | | | | | | |
contain cellulase that can digest it
| | | | |
(obligatory)
exploitation - ANSWER✔✔✔-+/- | |
Predator Prey |
Parasitoid
Micropredator
Parasite
Predator/Prey - ANSWER✔✔✔-predator kills many prey| | | | |
ex: lion eating giselle
| | |
+/-
Parasitoid - ANSWER✔✔✔-only 1 host attacked and killed
| | | | | | |
adult female wasp deposits eggs in/on an insect and the larva hatch and
| | | | | | | | | | | |
consume the host
| | |
+/-
,micropredator - ANSWER✔✔✔-attack more than one organism but
| | | | | | | |
rarely kills it
| |
blood feeders like mosquitos and leeches
| | | | |
+/-
parasite - ANSWER✔✔✔-only one host attacked but rarely killed,
| | | | | | | | |
parasite benefits and host can be harmed
| | | | | |
+/-
definition of a parasite - ANSWER✔✔✔-lives in or on the host, part or
| | | | | | | | | | | | |
all of nutrients from host, smaller than host, greater reproductive
| | | | | | | | | |
potential than host, potential to harm the host
| | | | | | |
what organisms are parasites - ANSWER✔✔✔-helminths (cestodes,
| | | | | | |
trematodes, nematodes), protozoa, arthropods
| | |
what organisms are not parasites - ANSWER✔✔✔-bacteria, viruses,
| | | | | | | |
fungi
ectoparasite - ANSWER✔✔✔-lives or feeds on host surface
| | | | | | |
endoparasite - ANSWER✔✔✔-lives inside host
| | | |
, obligate parasite - ANSWER✔✔✔-must be parasitic for at least part of
| | | | | | | | | | |
the lifecycle, unable to grow outside of a living host
| | | | | | | | |
faculative parasite - ANSWER✔✔✔-an organism that may resort to
| | | | | | | | |
parasitic activity, but does not absolutely rely on any host for
| | | | | | | | | | |
completion of its life cycle | | | |
definitive host - ANSWER✔✔✔-the host in which the sexual
| | | | | | | | |
reproduction of a parasite takes place | | | | |
intermediate host - ANSWER✔✔✔-Host from which the larvae derive
| | | | | | | | |
their nourishment, do not reach sexual maturity
| | | | | |
distribution of parasites in host population - ANSWER✔✔✔-negative
| | | | | | | |
binomial
a few hosts are heavily infected and killed while most have a few and
| | | | | | | | | | | | | |
are not killed
| |
direct life cycle - ANSWER✔✔✔-No intermediate host, parasite
| | | | | | | |
transmits from one DH to another | | | | |
through air, food, fomite | | |
indirect life cycle - ANSWER✔✔✔-Has an intermediate host, can't go
| | | | | | | | | |
directly from DH to DH
| | | |
