Introduction to parasitology with 100% correct answers 2024
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Course
Parasitology -
Institution
Parasitology -
What is parasitology
Parasites found world wide
Most infections are found in underdeveloped tropical and subtropical areas
Ectoparasite
Parasite that lives on outer surface of host
Lice, mites, ticks
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Introduction to parasitology
with 100% correct answers
2024
What is parasitology - answer Parasites found world wide
Most infections are found in underdeveloped tropical and
subtropical areas
Ectoparasite - answer Parasite that lives on outer surface of host
Lice, mites, ticks
Endoparasite - answer Lives inside the body of the host
Entameoba histolytica
Obligate parasite - answer Completely dependent on host during a
segment or all of its life cycle
Facultative parasite - answer Exhibit both parasitic and non-
parasitic modes of living and hence does not absolutely depend on
parasitic way of life, but is capable of adapting to it if places in a
host
Accidental parasite - answer Attacks an unnatural host and survives
Definitive host - answer Harbors parasite in adult stage or where
parasite undergoes a sexual method of reproduction
, Intermediate host - answer Harbors the larval stages of parasite or
an asexual cycle of development takes place.
In some cases, larval development is completed in 2 different
intermediate hosts= first and second intermediates
Natural host - answer Naturally infected with certain species of
parasite
Reservoir host - answer Makes parasite available for transmission to
another host and is usually not affected by infection
Accidental host - answer Under normal circumstances not infected
with parasite
Parasite Pathogenesis - answer Exposure and entry
Adherence and replication
Cell and tissue damage
Interferences with host immune response
Exposure and entry - answer Transmission
Fecal-oral route (sexual)
Direct penetration of skin
Arthropods
Transplacental
Adherence and replication - answer Facilitated by adhesins on
parasite surface
Adhesins bind to specific receptors on host cell
(Glycophorin A and B, complement receptors, Fibronectin, biting
mouth parts, sucking disks, plastid organelles that penetrate host)
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