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OrgBio - Protista
Kingdom Protista - Lab
53
Biology
Undergraduate 1
02/17/2011

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Term
Protozoans
Definition
Protists considered to be animal-like because they're capable of movement
Term
Algae
Definition
Protists considered to be plant like because they're photosynthetic
Term
Molds
Definition
Protists considered to be fungus-like because they are not capable of movement or photosynthesis
Term
Heterotrophic
Definition
Not able to produce it's own food; feeding on other organisms
Term
Motile
Definition
Having locomotive structures, like flagella, cilia, and pseudopods
Term
Flagella
Definition
Relatively long, hair-like projections
Term
Cilia
Definition
Short, hair-like projections
Term
Pseudopods
Definition
Temporary or false feet
Term
Sessile
Definition
Non-motile
Term
Autotrophic
Definition
Photosynthetic, with chloroplasts
Term
Ciliated Grooves
Definition
Pouch lined by cilia, used by an organism to capture and ingest food
Term
Food Vacuoles
Definition
Temporary digestive organelles
Term
Contractile Vacuole
Definition
Organelles of osmoregulation, usually controlling water balance
Term
Macronucleus
Definition
Larger, polyploid nucleus in ciliates.
Term
Calcareous Tests
Definition
External shells of calcium containing material
Term
Siliceous Tests
Definition
Transparent, glass-like shells; fragile and fragmented, with pores for pseudopods
Term
Trypanosomes
Definition
Parasitic flagellates; may live in the blood of vertebrates
Term
Trypanosoma gambinese
Definition
Trypanosome causing African sleeping sickness; transmitted via tsetse fly
Term
Apicomplexa
Definition
Parasitic protist that lives within red blood cells and multiplies asexually until cell bursts
Term
Genus Plasmodium
Definition
Species of this genus can cause malaria; transmitted via mosquito
Term
Chlorophyta
Definition
Largest phylum of algae, comprised of green algae
Term
Filamentous
Definition
Colonial form of algae, composed of long, interwoven, irregularly disposed threads
Term
Thalli
Definition
Colonial form of algae comprised of simple vegatative bodies without roots, stems, or leaves
Term
Motile Unicellular
Definition
Green algae, such as those in the genus Chlamydomonas, which is capable of movement and is unicellular
Term
Sexual Reproduction
Definition
Process in eukaryotic organisms involving meiosis and syngamy
Term
Syngamy
Definition
Gametic fusion, consisting of plasmogamy and karyogamy
Term
Plasmogamy
Definition
Fusion of cell parts other than nucleus
Term
Karyogamy
Definition
Fusion of nuclei
Term
Zygotic Meiosis
Definition
Haploid predominant sexual reproductive pattern; syngamy produces a diploid zygote, which undergoes meiosis to form haploid offspring
Term
Isogamous
Definition
Gametes are identically sized
Term
Hetrogamous
Definition
Gametes unlike in size
Term
Gametic Meiosis
Definition
Sexual reproduction pattern where syngamy immediately follows meiosis; diploid predominance
Term
Sporic Meiosis
Definition
Also known as alternation of generations; Sexual reproduction pattern where a haploid gametophyte produces gametes by mitosis and the diploid sporophyte forms meiospores by meiosis
Term
Motile Colonial Form
Definition
Form of colonial algae with flagella or cilia for motility
Term
Non-motile Colonial Form
Definition
Form of colonial algae that is sessile
Term
Filamentous
Definition
Thread-like
Term
Thallus
Definition
Body of a plant-like protist
Term
Isomorphic Alternation of Generations
Definition
Haploid and diploid phases are morphologically identical
Term
Oogamy
Definition
Having a large, nonmotile egg and a small, motile sperm
Term
Oogonia
Definition
Female gametangia of oogamic protists
Term
Anteridia
Definition
Male gametangia in oogamic protists
Term
Zygospore
Definition
Zygote forming from the fusion of a sperm and an egg, which then undergoes meiosis to produce four motile meiospores
Term
Diatom
Definition
Protist in the phylum Bacilliariophyta; important members of the phytoplankton
Term
Frustules
Definition
Walls of diatoms, composed of silica and consisting of two halves (valves)that fit like parts of a petri dish
Term
Brown Algae
Definition
Phylum Phaeophyta, such as kelp
Term
Blade
Definition
Major mass of brown algae
Term
Stipe
Definition
Stem of brown algae
Term
Holdfast
Definition
Root-like structure in brown algae
Term
Red Algae
Definition
Phylum Rhodophyta; large multicellular marine algae
Term
Plasmodial Slime Molds
Definition
Phylum Myxogastrida
Term
Plasmodium
Definition
Naked mass of streaming protoplasm
Term
Sporangium
Definition
Stalked fruiting structure produced from Plasmodial Slime Molds
Term
Spores
Definition
A reproductive cell capable of developing into a new individual without fusion with another reproductive cell
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