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BIO211 - 28
Chapter 28 - Protists
37
Biology
Undergraduate 1
02/02/2011

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Term
Protist
Definition
recently discovered members of diverse, mostly unicellular groups of eukaryotes (not a plant, animal, or fungus)
Term
mixotrophs
Definition
combine photosynthesis and heterotrophic nutrition
Term
secondary endosymbiosis
Definition
an evolution in which a heterotrophic eukaryotic cell engulfed a photosynthetic eukaryotic cell, which survived in a symbiotic relationship inside the heterotrophic cell
Term
excavates
Definition
unique cytoskeletons, some species have an excavated feeding groove on one side of the cell body
Term
diplmonads
Definition
anaerobic, have modified mitochondria (mitosomes)
Term
Parabasalids
Definition
anaerobic, reduced mitochondria (std "tric")
Term
Euglenozoans
Definition
presence of a spiral or crystalline rod of unknown function inside their flagella
Term
kinetoplastids
Definition
single, large mitochondrion that contains an organized mass of DNA (kinetoplast)
Term
euglenid
Definition
two flagella, mixotroph
Term
chromalveolata
Definition
form a monophyletic group, chromalveolates originated more than a billion years ago
Term
alveolates
Definition
monophyly is well supported by molecular systematics
Term
dinoflagellates
Definition
cells reinforced by cellulose plants, two flagella, "armored"
Term
apicomplexans
Definition
parasites of animals
Term
cilates
Definition
protists that have cilia to move and feed
Term
stramenopiles
Definition
group of marine algae that include photosynthetic organisms on the planet, (hairy flagellum)
Term
diatoms
Definition
unicellular algae that have unique glass-like wall made of silicia embedded in an organic matrix
Term
golden algae
Definition
biflagellated, photosynthetic,
Term
brown algae
Definition
largest and most complex algae, multicellular,
Term
thallus
Definition
algal body that is plantlike
Term
holdfast
Definition
anchors the alga
Term
stipe
Definition
stem
Term
blades
Definition
leaflike
Term
alternation of generations
Definition
a life cycle in which there is both a multicellular diploid form, the sporophyte, and a multicellular haploid form, the gameophyte; characteristic of plants and some algae
Term
heteromorphic
Definition
sporophytes and gameophytes are structurally different
Term
isomorphic
Definition
sporophytes and gameophytes look similar
Term
oomycetes
Definition
protist with flagellated cells, water mold, downy mildew, that acquires nutrition mainly as a decomposer or plant parasite
Term
radiolarians
Definition
delicate, intricately symmetrical internal skeletons that are generally made of silica
Term
forams
Definition
have porous shells (tests) consist of a single piece of organic material hardened with CaCO3
Term
test
Definition
shell of forams
Term
archaeplastida
Definition
monophyletic group that descended from the ancient protist that engulfed a cyanobacterium
Term
red algae
Definition
reddish algae (sushi wrap)
Term
green algae
Definition
a photosynthetic protist, named for resemblance with land plants
Term
amoebozoans
Definition
lobe or tube shaped pseudopodia
Term
plasmodial slime molds
Definition
brightly colored mass (plasmodium),
Term
cellular slime molds
Definition
unicellular amoemoid cells and aggregated reproductive bodies in its life cycle
Term
opisthokonts
Definition
animals, fungi, protists (eukaryotes)
Term
producers
Definition
organisms that use energy from light to convert CO2 to organic compounds
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