Ch.11 - Protozoan Groups Flashcards
what is the taxonomic consideration of protista?
a kingdom
what does pseudopod mean?
small foot
what are the general characteristics of protozoan groups?
1) unicellular eukaryote
2) locomotion
3) nutrition
4) reproduction
5) encystment
what do paired microtubules in flagellum or cilia do?
slide past one another, thus bending the filament
which is longer, cilia or flagellum?
flagellum
what has the function of locomotion?
pseudopod, cilia, and flagellum
what categories are in nutrition?
heterotroph, autotroph, or both
what are phagotrophs?
solid food
what are osmotrophs?
liquid food
what are the asexual ways of reproduction?
budding, binary fission, schizogony (multiple fission)
what is budding?
fission of smaller cell from larger
what is binary fission?
fission into two equal-sized cells
what is schizogony?
nucleus divides several times, then fission produces several cells
what is conjugation?
two cells pair, exchange gametic nuclei -> genetic variation increases
what happens in encystment?
hard cover forms and metabolism slows
how long does dormancy last in encystment?
until harsh conditions pass
what 4 phylum have pseudopods?
amoebozoa, foraminifera, radiolaria, stramenopiles
what are the types of pseudopodia?
lobopodia, reticulopodia, axopodia and filopodia
what is lobopodia?
broad lobe
what is reticulopodia?
branch and rejoin
what are axopodia and filopodia?
thin, radiate out
what is the locomotion of phylum amoebozoa?
lobopodia
what is the nutrition of phylum amoebozoa?
heterotroph
what is entamoeba?
amebic dysentary
what do all foraminifera have?
shells (aka tests) made of calcium
what is the nutrition of reticulopodia?
catch prey on ocean bottom (benthic)
what do all phylum radiolaria have?
silica tests (shells)
What is the nutrition of phylum radiolaria?
axopodia or filopodia catch prey as they float in the ocean (pelagic)
what phylum is actinosphaerium a part of?
phylum stramenopiles
what is the nutrition of axopodia (Phylum Stramenopiles)?
axopodia used to capture prey that float in freshwater
what are colorless heterotrophs (animal like)?
zooflagellates
what 4 phyla have flagella?
virdiplantae, euglenozoa, dinoflagellata, and diplomonada
what is the phylum of volvox?
viridiplantae
what is the phylum of euglena?
euglenozoa
what is the phylum of trypanosoma?
euglenozoa
what is the phylum with dinoflagellates/plankton?
dinoflagellata
what is the phylum of giardia?
diplomonada
what is the phylum of paramecium?
ciliophora
what is the phylum of amebas?
amoebozoa
what is the phlyum of actinosphaerium?
stramenopiles
what are phytoflagellates?
have chlorophyll (plant-like)
Are phylum viridiplantae phytoflagellates or zooflagellates?
phytoflagellates
what is the nutrition of volvox?
autotrophic
what is the nutrition of euglena?
autotroph, and heterotroph when light -limited
are phylum euglenozoa phytoflagellates or zooflagellates?
zooflagellates
what is known as the african sleeping sickness?
trypanosoma
what transmits trypanosoma?
tsetse fly
are phylum dinoflagellata phytoflagellates or zooflagellates?
both
what does “dino” mena?
whirling
what is special about phylum dinoflagellata?
have 2 flagella at right angles
What is the – term for the dinoflagellates that are considered algae and that are also endosymbionts inside many jellyfish, corals, & molluscs; a mutualistic relationship?
zooxanthellae
what does giardia lambia cause?
diarrhea
what phylum is multinuclear?
phylum ciliophora
what does the macronucleus do?
metabolism + growth
what does the micronucleus do?
divide/exchange in conjunction
what are trichocysts/toxicysts?
defensive thread or toxin expelled to paralyze prey
Paramecium have what kind of nutrition?
freshwater osmotroph
what has contractile vacuoles and an oral grove?
paramecium
endosymbionts fall under what phyla?
ciliophora
suctorians fall under what phyla?
ciliaphora
what are endosymbionts?
commensal and parasitic
what are the characteristics of suctorians?
1) young swim with cilia
2) adults become sessile on stalk, lose cilia, develop paralyzing tentacles
what phylum have an apical complex?
apicomplexa
what phylum has all of the endoparasites?
apicomplexa
what does the apical complex do?
aids infection
toxoplasma is under what phyla?
apicomplexa
plasmodium are under what phyla?
apicomplexa
what is the main host of toxoplasma?
cats
what is also known as malaria?
plasmodium
what is the primary host of malaria?
mosquito
what is the secondary host of malaria?
humans
what’s the life cycle of malaria in it’s primary host?
gametes -> zygote -> sporozoites -> salivary glands -> humans
what is the life cycle of malaria in it’s secondary host?
sporozoites -> liver -> merozoites -> rbc -> rbc burst -> release toxins
what are some symptoms of malaria?
chills and fever
where does malaria occur in the body?
liver