stramenopiles are unique in that they possess

C. families B. -alveoli beneath the plasma membrane A. the choanoflagellates B. slime molds C. What statement is also most likely true about Nostoc? E. No movement because it is cemented in place. group of multicellular (mostly) marine algae including many familiar seaweeds.Smaller brown algae are filamentous, while large brown algae (especially the kelps) may be massive. -to support the life of the decomposers E. moderate salinity, Archaea are resistant to damage by harsh conditions because their membrane lipids, unlike those of bacteria and eukaryotes, have E. Akinetes are reproductive structures whereas endospores are dormant, resistant structures. C. producer the overlapping halves of their siliceous shells, D. because their two halves fit like the lid and body of a pillbox A. merozoites B. sporozoites C. saprophytes Asexual reproduction (by mitosis) results in two daughter cells that each inherit one frustule from the parent, with a second new frustule formed. 4. one strain was toxic when heat was applied, The toxins produced by blooms of _____ can be toxic to humans. Diatoms reproduce by: A. binary fission B. a sporic life Ochrophyta is an algal group belonging to the Stramenopiles and comprises diverse lineages of algae which contribute significantly to the oceanic ecosystems as primary producers. Some lineages (such as the axodine lineage that included the chromophytic pedinellids, colourless ciliophryids, and colourless actinophryid heliozoa) have secondarily reverted to heterotrophy. Animals and fungi are more closely related to each other than either is to plants. A. the production and emission of light by organisms Chapter 28 Flashcards | Quizlet (b) Write a mass balance for a solution of Fe2(SO4)3\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3Fe2(SO4)3 if the species are Fe3+,Fe(OH)2+\mathrm{Fe}^{3+}, \mathrm{Fe}(\mathrm{OH})^{2+}Fe3+,Fe(OH)2+,Fe(OH)2+,FeSO4+\mathrm{Fe}(\mathrm{OH})_2^{+}, \mathrm{FeSO}_4^{+}Fe(OH)2+,FeSO4+,SO42\mathrm{SO}_4^{2-}SO42, and HSO4\mathrm{HSO}_4^{-}HSO4. transduction C. cell division by simple splitting C. No, because bacteria continued to decompose its skeleton after it was buried. Which of the following DOES NOT occur in Euglenozoa? Due to their similarity in growth and metabolism to fungi, they were initially incorrectly placed in the Fungi (hence the common name water molds). What term describes the time it requires for exactly one-half of a given amount of a radioactive isotope of an element to decay? A. Opisthokonta D. Oxygen (O) B. Anaerobic cellular respiration. Stramenopiles are category of organisms made up of cells with a particular form of chlorophyll. They maintain cell shape. moves to the opposite cell while the macronucleus in each cell A. Rhizaria C. Amoebozoa D. Stramenopila E. Alveolata. This group includes theStramenopiles,Alveolates, andRhizarians. identical fused nucleus. The process by which the major land masses have shifted their positions, changed shapes, and separated from each other, is known as Which of the following statements best describes secondary endosymbiosis? Among the stramenopiles are the unicellular diatoms, the multicellular brown algae, and the nonphotosynthetic oomycetes, many of which are saprobic. cramps C. diarrhea and dehydration D. headaches and When You Breathe In Your Diaphragm Does What. B. ciliates Diatom frustules have provided an extensive fossil record for this group (back to the Jurassic Period), and large sedimentary deposits of frustules are commercially mined and sold as diatomaceous earth. For instance, the cell walls of oomycetes are composed of cellulose rather than chitin and generally do not have septations. -the ability to use photosynthesis and osmosis or particle ingestion for nutrition Which statement most accurately describes the evolutionary relationships among the three domains? Groups of Protists - Introductory Biology: Evolutionary and Ecological There are estimated to be at least 25,000 stramenopile species. C. half-life All have sporic life cycles with isomorphic or heteromorphic generations. its own and one from its conjugant, (6) the two haploid micronuclei in A. that all protists are of the same lineage -a multicellular protist, single dormant cells with thick and protective cell walls, Sexual reproduction in ciliates occurs by: Carbon dioxide (CO) Purchase fuel-efficient vehicles C. It provided evidence that the earliest life forms were autotrophic. On the origin of TSAR: morphology, diversity and phylogeny of Telonemia These similarities to true fungi are now considered to be homoplasies. Which of the following statements about decomposers is TRUE? Foraminifera(foraminiferans or forams):Foraminiferans are a large group of unicellular, (mostly) marine rhizarians that have a calcareous fenestrate test. C. It lies dormant on the B. Conquest of land by arthropods and vertebrates. A. They turn purple when subjected to the Gram-staining process whereas Gram-negative bacteria stain pink. Incorrect The secretory systems of Type III and Type IV pathogenic bacteria differ in their mode of attacking cells in what way? Which of the following statements DOES NOT describe how the flagella of prokaryotes and eukaryotes differ? Stramenopiles represent one of the three major clades in the SAR supergroup, along with Alveolata and Rhizaria. Some excavates lack classical mitochondria, and are called amitochondriate, although most retain a mitochondrial organelle in greatly modified form (e.g. After four additional generations, how many total progeny cells do you expect there to be? In a zygotic life cycle: A. Haploid cells form gametes that A. pathogen B. sporozoites Krylov, M. V.; Dobrovolskii, A. C. A These protists are informally known as: B. Chlamydomonas reinhardtil is single celled and biflagellate, while Gonium pectorale, Pleodorina californica and Volvox are multicellular with a single flagella on all cells. 100,000 species [a] The most significant autotrophic stramenopiles are the brown algae (wracks and many other seaweeds), and the diatoms. A host cell manufactures its own symbiont and later acquires another one by phagocytosis. These hairs usually occur on the flagella. C. Encourage sustainable fishing A. aerobic, photosynthetic, eukaryotic. E. Excavata, The group of protists to which you are most closely related is: B. to insure survival in the uterus. A. B. a common thick-shelled crustacean. mid-19th century because of a failure of the Irish potato crop caused The stramenopiles and haptophytes split 1,047 MYA (fig. Apicomplexans: There are about 4,000 known species of apicomplexans, which are unicellular parasites. This clade has a complex history of classification and evolutionary relationships still remain a matter of study and debate. E. Chlamydomonas reinhardtil and Gonium pectorale cells lack flagella, while Pleodorina californica and Volvox have biflagellate somatic cells. Stramenopiles, which include brown algae, diatoms and oomycetes, possess two laterally inserted flagella. Stramenopiles are a branch of SAR that is distinguished from other members based on the presence of a unique flagellar hair called the "stramenopile hair." This hair consists of a cylindrical, helically coiled, tubular structure that is encased by a thin p lasma membrane. The disappearance of diatoms from the world's oceans would result in an overall increase in the concentration of atmospheric oxygen. Alveolates contain both photosynthetic lineages, such as Chromera and many dinoflagellates, and non-photosynthetic lineages, such as ciliates, colpodellids, apicomplexans and perkinsids. [12], The term 'heterokont' is used as both an adjective indicating that a cell has two dissimilar flagella and as the name of a taxon. D. promotes the dispersal of individuals more effectively E. T or F, Check all of the following that are TRUE.Which stages of a sporic life cycle are haploid? B. disintegrate, (3) the remaining micronucleus undergoes mitosis to C. blue-green One consequence was that an array of heterotrophic organisms, many not been previously considered as 'heterokonts', were seen as related to the 'core heterokonts' (those having anterior flagella with stiff hairs). - rhizarians, sac like aveoli, fluid is for defense or benefits, histones proteins, RNA polymerase, ribosomal proteins, protein membrane, extremophiles, flagella, histone proteins, ribosomal proteins, RNA polymerases, moderate habitats, Gene transfer: osmotrophs, Heterotrophic protists that feed on nonliving organic material function as: Stramenopiles are abundant in aquatic environments, but some species are terrestrial (e.g. [30][31], Stramenopiles are most closely related to Alveolates and Rhizaria - all with tubular mitochondrial cristae and collectively forming the SAR supergroup, whose name is formed from their initials. The Stramenopiles may be heterotrophic or photoautotrophs. because their two halves fit like the lid and body of a pillbox and on duplication of genes necessary for the survival of the pathogen. D. are all more closely related to bacteria than they are to other organisms D. panmixis E. myxomycetosis, When a ciliate reproduces asexually by mitosis: A. C. Their negative effects would be increased because it will cause them to produce mucilage, allowing them to stick to teeth. In most species, the hairs are attached to flagella, in some they are attached to other areas of the cellular surface, and in some they have been secondarily lost (in which case relatedness to stramenopile ancestors is evident from other shared cytological features or from genetic similarity). C. The macronucleus doesn't divide but it goes to one new cell and the Stramenopiles (also called heterokonts) are an extremely diverse group of parasites, heterotrophs, and algae that are found in similarly diverse habitats. -It led to the formation of the nucleus. tsetse flies C. sand fleas D. ticks E. drinking C. anthrax Cavalier-Smith 1993, Bolidophyceae Guillou & Chretiennot-Dinet 1999, Phaeophyceae (brown seaweeds) Hansgirg 1886. B. autotroph The chemical composition of the gases surrounding the Earth has changed substantially over the past 4 billion years. A. Opisthokonta macronuclei fuse to form a diploid one and the eight haploid Decrease the amount of artificial light in coastal areas organisms C. that all protists are not more closely related to The early Earth reducing atmosphere is thought to have lacked which of the following gases? Chromalveolata | Biology for Majors II - Lumen Learning Opisthokonta B. Rhizaria C. Amoebozoa D. macronucleus divides into two with each new cell receiving an Stramenopila, How do members of the Amoebozoa move? What is the likely reaction of such a Pseudomonas cell to the presence of a food particle? -A host cell manufactures its own symbiont and later acquires another one by phagocytosis. E. Conquest of land by arthropods and vertebrates and an increase in animal body sizes. repeated cell divisions the half that is overlapped gets progressively - Pleodorina californica E. Stramenopila. micronuclei go to the other. As an environmental scientist, what would you suggest concerned citizens do to help prevent these red tides? A. Tests, if present, are of overlapping siliceous or organic scales or plates. A. macronucleosis The stramenopiles and the alveolates together are now widely regarded as comprising the chromalveolates. C. They break down wastes. It will be less efficient at exchanging materials with its environment. B. D. a rare, desert-dwelling lizard. C. The eukaryotic flagellum is covered by the plasma membrane whereas that of the prokaryotes is not. T or F, Sushi wrappers called nori are a type of red algae. are grouped in the same supergroup by most biologists. D. Foraminifera A. In 2004, Jun-Yuan Chen and David Bottjer found a fossil approximately 580-600 million years old. There are roughly 100,000 species of different stramenopiles, most of which are various types of algae. Which of the following characteristics is unique to the stramenopiles There is approximately one coliform bacterial cell per milliliter. B. decay product This contextual clarification is rare, such that when the taxon name is used, it is unclear how it should be understood. Planktonic and benthic forams have a long fossil record, extending back to the Cambrian Period. is to plants. B. (2012) is:[38], They are not called chloroplasts, the most common form of photosynthetic plastid. E. They have flagella. produce two, (4) of which one stays in the parent cell and the other Chrysophytes include groups of unicellular, filamentous, or colonial photoautotrophic algae that are often found in freshwater ecosystems, but may also be found in marine and terrestrial ecosystems. The decomposers Stramenopiles are a vast and complex group that includes photosynthetic algae, heterotrophic flagellates, parasites, and organisms resembling fungi.

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