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MIP 260 Study Test | Questions with 100% Correct Answers
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MIP 260 Study Test | Questions with 100% Correct Answers
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MIP 260 Study Test | Questions with 100%Correct Answers
an udnerstanding of life cycles is - ✔✔important becuase is exposes possible targets
for contorl
Zoonosis - ✔✔transmission to humans of parasites normally found in wild and
domestic animals, many are rare and cause little harm but other are more common and
more important
trichinella - ✔✔involved wild animal. chiefly amongs rats and swines, people are
infected when eating undercooked bear or pork
protozoa - ✔✔manya re free living, [arasitic infections can be asymptomatic or life
threatenign depending on species an dstrain adn resistance of the host
most species causing human diseases are members of the group - ✔✔apicomplexa
structure of protozoa - ✔✔single celled, many contain one or more nuclei, range 1-
150 microns but most are less than 50, body covered with plasma membrane, may have
thick glycocalyx (may prevent binding of immunological response)
kinetoplast - ✔✔a dark staining mass of DNA within the single mitochondrion;
situated at the base of the flagellum, genetic information different that nuclear dna
some protozoa have a - ✔✔karyosome/endosome
2 basic types of locomotion organelles - ✔✔pseudopodia, flagella, cilia
, flagella - ✔✔slender, whip-like, outer sheath continual with the cell membrane
axoneme - ✔✔arises from a kinestosome or basal body
kinetosomes - ✔✔may lie in a flagellar pocket or reservoir, usually fixed in a position
relative to other organelles
mastigont system - ✔✔flagellum+ kinetosome+ associated organelles
flagellar movements in the form of - ✔✔helical waves, may be fast, slow, forward or
backward, lateral or spiral
axostyle - ✔✔formed by microtubules may run from the area around the kinetosome
to the posterior end where it may protrude
cilia - ✔✔beat in a back and forth stroke in a two dimensional plane, beat in a way
that is reminiscent of a field of waving grain, beat with a powerful backstroke that
pushes surrounding fluid
pseudopodia - ✔✔temporary extension of the cell membrane, functions in
locomotion and feeding, found in amoebas
protoplasmic streaming - ✔✔1. protrusion of the cell 2. adhesion to substrate 3.
subsequent contraction
protozoan reproduction - ✔✔may use sexual or asexual, could be environmentally
dependent
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