lab 3 Flashcards
What is characteristic 1 of kingdom protista?
eukaryotic- all protist have a nucleus (some have more than one)
what is characteristic 2 of kingdom protista?
unicellular-made up of one cell (kelp and algae are exceptions)
what is characteristic 3 of kingdom protista?
means of locomotion-many are able to move
what do protist use to move?
1.flagella-tail like whip
2.cilia-hair like structure
3.psuedopods-false feet
what is characteristic 4 of kingdom protista?
classified by niche
what are the niches of characteristic 4 of kingdom protista?
1.producer
2.consumer
3.decomposer
what are the supergroups of kingdom protista?
1.excavata
2. SAR
3. Archaeplastida
4.Unikonta
some kingdom protista are heterotrophic T or F?
T
some kingdom protista are autotrophic T or F?
T
how do protista reproduce?
asexually and sexually
some protista are simple multicellular T or F?
T
what separates protists from bacteria?
having a nucleus surrounded by nuclear membrane
what are the 4 main SUBgroups of SUPERgroup excavata?
1.euglenids
2.diplomonads
3.kinetoplastids
4.parabasalids
what is supergroup excavata named for?
named for its deep grooves in cytoskeleton that appear to be excavated
why is supergroup excavata atypical?
mitochondria are absent or aytpical
how is supergroup excavata grouped?
grouped based on their appearance of cytoskeletons
what is an example in the SUBgroup euglenids of the SUPERgroup excavata?
euglena
where do euglena live?
primarily in freshwater, but important in marine environments
are euglena heterotrophic or autotrophic?
heterotrophic
what is a pellicle?
a distinctive cell wall composed of spiral strips in euglena
what is an eyespot?
a spot on euglena that is sensitive to light
what is an example in the SUBgroup kinetoplastids of the SUPERgroup Excavata?
trypanosoma
how is trypanosoma passed to humans?
passed from the tsetse fly
what disease does tstse flys cause?
african sleeping disease
how does trypanosoma escape humans defenses?
trypanosomas alter their molecular structure frequently
what is trypanosoma’s 1 singular organelle?
single large mitochondria- contains an organized mass of DNA called Kinetoplast(posterior) and a nucleus (center)
how are trypanosomas living?
free living, symbiotic or parasitic
what does supergroups SAR stand for?
1.stramenopiles
2.alveolates
3.rhizarians