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Protists
57
Biology
Not Applicable
02/18/2004

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Term
protist
Definition
an organism that is not a plant, animal, fungi, prokaryote, or a bacterium
Term
Protista
Definition
comes from the Greek word meaning "the very first"
Term
Zoomastigina (zooflagellates)
Definition
animal-like protists that swim using flagella
Term
examples of zooflagellates
Definition
Trichomas vaginalis, Leishmania donovani, etc.
Term
Sarcodina
Definition
plylum for sarcodines
Term
sarcodines
Definition
animallike protists that use pseudopods for feeding and movement
Term
amoeboid movement
Definition
type of motion used by sarcodines
Term
food vacuole
Definition
small cavity in the cytoplasm that temporarily stores food
Term
Ciliophora
Definition
phylum for ciliates
Term
ciliates
Definition
use cilia for movement
Term
cilia
Definition
shortlike hair projections (similar 2 flagella) that are used for movement
Term
Trichocysts
Definition
very small, bottle-shaped structures used for defense
Term
macronculeus
Definition
the larger of a ciliate's 2 nuclei that contains multiple copies of most of the genes that the cell needs in its day-to-day activities
Term
micronucleus
Definition
the smaller of a ciliates 2 nuclei that contains a "reverse copy" of all the cell's genes
Term
gullet
Definition
an indentation in one side of cilia that is used to sweep food particles into
Term
anal pore
Definition
region of the cell membrane of a ciliate where waste-containing food vacuoles fuse and are then emptied into the environment
Term
contractile vacuoles
Definition
cavities in the cytoplasm that are specialized to collect water
Term
conjugation
Definition
process where cells exchange genetic information (occurs with ciliates)
Term
Sporozoa
Definition
phylum for sporozoans
Term
sporozoa
Definition
do not move on their own and are parasitic
Term
Examples of disease causing protists and their diseases
Definition
Mosquitos (malaria), tsetse flies (African sleeping sickness), etc
Term
algae classification
Definition
photosynthetic pigments
Term
Accesory pigments
Definition
compounds other than chlorophyll that obsorb light at different wavelengths than chlorophyll
Term
Euglenophyta
Definition
phylum for euglenophytes
Term
euglenophytes
Definition
primarily photosynthetic, live in freshwater, and have 2 unequal flagella
Term
pellicle
Definition
flexible outer covering of a euglena that allows it to change direction swiftly
Term
Chrysophyta
Definition
phylum for chyrsophytes
Term
Chrysophyta
Definition
includes yellow-green algae and golden-brown algae
Term
chysophytes
Definition
plantlike protists that have goldn-colored chloroplasts
Term
Bacillariophyta
Definition
phylum for diatoms
Term
diatoms purpose
Definition
produce thin, delicate cell walls of silicon (the main component of glass)
Term
Pyrrophyta
Definition
phylum for dinoflagelletes
Term
Pyrrophyta
Definition
live in saltwater, are phtosynthetic, and have rigid cell walls of cellulose
Term
Phytoplankton
Definition
population of algae and other small, photosynthetic organisms found near the surface of the ocean and forming part of plankton
Term
Rhodophyta
Definition
phylum for red algae
Term
red algae
Definition
live almost entirely in saltwater, contain the red pigment phycobilins
Term
phycobilins
Definition
accessory pigment found in red algae that is especially good in absorbing blue light
Term
Phaeophyta
Definition
phylum for brown algae
Term
brown algae
Definition
live in almost entirely in saltwater, multicellular, and contain the brown pigment fucoxanthin
Term
Chlorophyta
Definition
phylum for green algae
Term
green algae
Definition
live in fresh and saltwater, have food stored as starch, have chlorophyll simialr to that in vascular plants
Term
examples of brown algae
Definition
giant kelp, fuccus
Term
filaments
Definition
long threadlike colonies
Term
filaments
Definition
long threadlike colonies
Term
alternation of generations
Definition
process in which many algae switch back in forth beween haploid and diploid stages of thei life cycles
Term
gametophytes
Definition
gamete-producing plants
Term
sporophytes
Definition
spore-producing organisms
Term
slime molds
Definition
funguslike protists that play key roles in recycling organic material
Term
Acrasiomycota
Definition
phylum for cellular slime molds
Term
cellular slime molds
Definition
cells spertaed by cell membranes
Term
fruiting body
Definition
a slender, reproductive structure that produces spores
Term
Myxomycota
Definition
phylum for acellular slime molds
Term
acellular slime molds
Definition
pass through a stage in which their cells fuse to form large cells with many nuclei
Term
Oomycota
Definition
phylum for water molds
Term
oomycetes (water molds)
Definition
thrive on dead or decaying organic matter in water and some are plant parasites on land
Term
oogonium
Definition
produce female nuclei in water molds
Term
antheridium
Definition
produce male nuclei in water molds
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