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Chapter 28 Protists

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40340473protistseukaryotes or living things whose cell has a nucleus
40340474mixotrophscombining photosynthesis and heterotrophic nutrition
40340475secondary endosymbiosisa process in eukaryotic evolution in which a heterotrophic eukaryotic cell engulfed a photosynthetic eukaryotic cell which survived in a symbiotic relationship inside the heterotrophic cell
40340476excavata, chromalveolata, archaeplastidia, rhizaria, unikontathe five supergroups of eukaryotes
40343305ExcavataOne of 5 eukaryotic supergroups. unique cytoskeletal features, excavated feeding groove on one side of the cell body(some)
40343306ChromalveolataOne of the five supergroups of eukaryotes proposed in a current hypothesis of the evolutionary history of eukaryotes. They may have originated from secondary endosymbiosis and include two large protist clades, the alveolates and stramenopiles.
40343307ArchaeplastidaOne of the five supergroups of eukaryotes. It includes red algae, green algae, and land plants, descended from an ancient protist ancestor that engulfed a cyanobacterium.
40343308RhizariaOne of the five supergroups of eukaryotes. A diverse protist clade that is defined by DNA similarities, contains amoebas
40343309UnikontaOne of the five supergroups of eukaryotes. This calde consists of amoebozoans, and opisthokonts.
40343310DiplomonadsHave modified mitochondria. No golgi apparatus. 2 haploid nuclei. several flagella. Giardia-human intestinal parasite that cause diarrhea and intestinal discomfort. leaves host via feces. survives harsh environments by thick walled, protective cysts (don't drink mountain stream water!)
40343311ParabasilidsHave reduced mitochondria called hydrogenosomes, Trichomonas vaginalis - inhabits the vagina of human females; Trichonympha - guts of termites, digests cellulose, flagellated. These are symnionts and mostly benign.
40343312euglenozoanMember of a diverse clade of flagellated protists that includes predatory heterotrophs, photosynthetic autotrophs, and pathogenic parasites.
40343313kinetoplastidA protist, such as a trypanosome, that has a single large mitochondrion that houses an organized mass of DNA
40343314euglenida protist characterized by one or more whiplike flagella that are used for locomotion and by a photoreceptor that detects light. These are photosynthetic, but if deprived of chlorophyll, some are capable of heterotrophic nutrition
40343315alveolatesUnicellular protists with subsurface cavities (Dinoflagellates, Ciliates, and Apicomplexans).
40343316dinoflagellatesGroup of protists that form "blooms", can be toxic. make up phytoplankton and can be bioluminescent. They generally have two flagella, half are heterotrophic and the other half are photosynthetic, many species are luminescent
40343317apicomplexanA protist in a clade that includes many species that parasitize animals, ex/ malaria
40343318CiliatesProtozoan that uses cilia for food and movement
40343319StamenopilesA protist in which a "hairy" flagellum (one covered with fine, hairlike projections) is paired with a shorter, smooth flagellum. Marine algae that contain some of the most important photosynthetic organisms on the planet.
40343320Diatomssingle-celled organisms. found in salt and fresh water. producers. make up a large percent of phytoplankton. cell walls contain cellulose and silica (frigid and glasslike). used in silver polish, toothpaste, filter and insulation
40343321Golden algaeA biflagellated, photosynthetic protist named for its color, which results from its yellow and brown carotenoids.
40343322Brown algaemost are large, complex, multicellular "seaweeds"; they are common in temperate and colder waters, including those off california; they exibit a variety of life-cycles, including alternation of generations that may be heteromorphic or isomorphic;
40343323Thallusa plant body without true stems or roots or leaves or vascular system
40343324holdfastA special structure used by an organism to anchor itself
40343325stipeIn some algae, the stemlike region of a thallus, supports the leaflike blades of a seaweed
40343326bladesprovide most of an algae's surface area for photosynthesis
40343327heteromorphicReferring to a condition in the life cycle of all modern plants in which the sporophyte and gametophyte generations differ in morphology.
40343328isomorphicReferring to alternating generations in which the sporophytes and gametophytes look alike, although they differ in chromosome number.
40343329oomycetesnonphotosynthetic fungi that resemble algae and that reproduce by forming oospores, water molds
40343330foramsrigid shells, cytoplasmic streaming-podia, life cycles involve alternating generations
40343331radiolariansA protist, usually marine, with a shell generally made of silica and pseudopodia that radiate from the central body.
40343332red algaemost of the world's seaweeds. contain chlorophyll and red pigment. live in tropical waters. multicellular. grow less than 1 meter in length. can grow 260 m below the surface.
40343333green algaePhotosynthetic protists that include unicellular, colonial, and multicellular species with grass green chloroplasts; closely related to true plants.
40343334Slime moldsplasmodial-brightly colored, branching growth on a decaying log which is a protist; sporangia-fruiting bodes (reproduction structures); cellular-decomposers that live mainly on decaying organic matter
40343335plasmodial slime moldstype of protist that has ameboid cells, flagellated cells, and a plasmodial feeding stage in its life cycle
40343336plasmodiumA single mass of cytoplasm containing many diploid nuclei that forms during the life cycle of some slime molds.
40343337cellular slime moldsA type of protist that has unicellular amoeboid cells and aggregated reproductive bodies in its life cycle.
40343338gymnamoebasNaked cells without conspicuous structures, mostly aquatic and terrestrial. What most people think of as amoebae.
40343339entamoebasbelong to amoeboxoans; include free living and parsitic species, infect all classes of vertebrates as well as some invertebrates; we host at least 6 species, cept one-E histolytica
40343340opisthokontorganisms that descended from an ancestor with a posterior flagellum, including fungi, animals, and certain protists.
40343341producersorganisms that make their own food
41690032Endoplasmic Reticuluminternal membrane system in cells in which lipid components of the cell membrane are assembled and some proteins are modified
41690033Phospholipid bilayerMolecules that are constituents of the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.
41690034endosymbiosisProcess through which early prokaryotic cells are thought to have engulfed other, smaller cells and eventually incorporated them as organelles; these cells evolved into modern-day eukaryotes.
41690035Hydrophilichaving a strong affinity for water
41690036Hydrophobiclacking affinity for water
41690037ribosomesnon membrane bounded organelles responsible for protein synthesis
41690038Lysosomes, Centrioles, FlagellaIn animal cells but not plant cells are ____________, ____________, and ____________
41690039Diplomonads, Parabasilids, Euglenozoans_____________, ______________, and _____________ Belong to the Excavata phylum of protists

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