B. Eukaryotic flagella have the motor protein dynein whereas the prokaryotic one does not. C. They are useful in studying global A. host cell ingests one symbiont and then later ingests another A. N A host cell manufactures its own symbiont and E. flagellates, Which protist would most likely be phytoplankton? They maintain cell shape. C. Sulfuric acid respiration. -alveoli beneath the plasma membrane D. are all more closely related to bacteria than they are to other organisms B. Conquest of land by arthropods and vertebrates. Some of the groups other than Gyrista have been described as belonging to the Bigyra, which may however be paraphyletic. C. Chlamydomonas reinhardtil is single celled, Gonium pectorale is composed of identical cells, and Pleodorina californica and Volvox are composed of two different cell types. against predators? D. They are less resistant to antibiotics than Gram-negative bacteria. -They are neither heterotrophic nor autotrophic, they are decomposers. Knowledge of a pathogen's genome is useful because: B. it allows scientists to prevent meiosis and the duplication of genes necessary for the survival of the pathogen E. anthracite. E. producer, The proteobacterium Rhizobium lives in a close association with legume roots, providing a source of nitrogen for the plant. E. They have flagella. glycolysis in the peroxisomes D. cilia E. inter-locking Diatomaceous earth is commonly used as an abrasive in polishes (toothpaste and silver polish) and filtration (swimming pool filters). quality of light prevalent in their various preferred habitats and Their evolutionary relationships remain an area of active research. E. exchange of genes between two cells, Bioremediation is: D. gas vesicles responses to changing environments B. is more fun than asexual oomycetes include some significant plant pathogens such as the cause of potato blight, Phytophthora infestans. Protists are NOT monophyletic. Most stramenopiles are single-celled, but some are multicellular algae including some large seaweeds, the brown algae. E. Participate in beach cleanup efforts, Phagotrophy (Phagocytosis) is: A. an endosymbiotic relationship between an archaeon and a bacterium. These often form a pellicle, which is used in various species for motility, defense, or host cell invasion. D. Stramenopila 100,000 species D. dengue fever General features of the Blastocystisgenome. micronuclei and then divide into two with each new cell receiving an cramps C. diarrhea and dehydration D. headaches and 1980. Their negative effects would be reduced because they will no longer be able to produce mucilage and stick to teeth. A. C. Both systems attach to cells in the same way but they differ merely in the chemicals that they inject into the host cell. 1, node 4). Rhodophyta B. continental drift. B. 2023 FAQS Clear - All Rights Reserved pathogens, JoAnn Burkholder and colleagues performed an experiment to determine whether or not two strains of Pfisteria shumwayae (CCMP 1024C and CCMP 2089) were toxic to mammalian cells. [Solved] Stramenopiles Are Unique in That They Possess Scientists develop a chemical that binds to molecules that make quorum sensing possible, rendering those molecules non-functional. meiosis to produce eight micronuclei, of which seven disintegrate, (3) Some excavates lack classical mitochondria, and are called amitochondriate, although most retain a mitochondrial organelle in greatly modified form (e.g. Cercozoa also includesPaulinella chromatophora,a unicellular photoautotroph whose plastid represents a possible instance of primary endosymbiosis. B. red algae C. kelp D. cyanobacteria E. E. They protect against viruses. D. half-decay egg This clade has a complex history of classification and evolutionary relationships still remain a matter of study and debate. D. Haploid cells form spores that in turn fuse to produce thick-walled zygotes capable of surviving stressful conditions. A. diversifies genotypes thereby allowing faster evolutionary E. They attach to host cells -single dormant cells with thick and protective cell walls Stramenopiles (also called heterokonts) are an extremely diverse group of parasites, heterotrophs, and algae that are found in similarly diverse habitats. transfer of spores These pigments B. The taxon 'Heterokontae' was introduced in 1899 by Alexander Luther for algae that are now considered the Xanthophyceae. A. protection against a host's immune system A. production of foodstuffs such as cheese pathogen. It will be able to store more nutrients. Blastocystis is a parasite of humans;[25] cycle E. spontaneous generation, Diatoms have a special problem: A. because their + and - [13] But the same term was used for other groupings of algae. A. the production and emission of light by organisms B. cell division by mitosis [32][24][33] The ancestor of the SAR supergroup appears to have captured a unicellular photosynthetic red alga, and many Stramenopiles, as well as members of other SAR groups such as the Rhizaria, still have plastids which retain the double membrane of the red alga and a double membrane surrounding it, for a total of four membranes. E. the presence of a feeding groove, Slime molds are in the supergroup produce a diploid nucleus. undergoes meiosis to produce four haploid micronuclei, of which three What is the most accurate description of the consequence(s) of the increased oxygen (O2) in the atmosphere during and after the Silurian Period? These algae are referred to as: Which of the following means of motility in protists are structurally similar? 5 Moreover, later studies demonstrated that the history of endosymbiosis was far more complex. D. anaerobic, heterotrophic, eukaryotic. Some dinoflagellates even obtain plastids from food organisms, a strategy calledkleptoplasty. This means that protists: Increasing concentrations of nitrogen and phosphorus caused by fertilizer runoff Chromalveolates include very important photosynthetic organisms, such as diatoms, brown algae, and significant disease agents in animals and plants. When You Breathe In Your Diaphragm Does What. In sexual reproduction in ciliates the sequence of events is: A. Dinoflagellates: There are about 2,000 described species of dinoflagellates, which are unicellular organisms with two flagella of different morphology. E. Sulfuric acid, aerobic, and anaerobic respiration. A. are all members of the same phylum A. the choanoflagellates 1. one strain was toxic and the other was not Who Can Benefit From Diaphragmatic Breathing? D. Stramenopila An interest rate of nominal 12% per year, compounded weekly, is: (a) An effective rate per year (b) An effective rate per week (c) A nominal rate per year (d) A nominal rate per week. A. Aerobic cellular respiration. D. it allows the development of drugs that target metabolic pathways unique to the pathogen C. cell division by simple splitting one. Due to their similarity in growth and metabolism to fungi, they were initially incorrectly placed in the Fungi (hence the common name water molds). Stromatolites are C. A How many species of stramenopiles are there? They contain symbiotic algae. 5.4 Algae - Microbiology | OpenStax B. Halobacterium salinarum; A unicellular obligate aerobe that often inhabits hypersaline lakes. parasites D. HO warming. its own and one from its conjugant, (6) the two haploid micronuclei in D. methanogen When a ciliate reproduces asexually by mitosis The alveolates, protists characterized by the presence of sacs of fluid under the cell membrane called alveoli, are one such group. D. Endospores cannot resist stressful conditions whereas akinetes can. E. mutualist. These are sometimes referred to as tinsel-type flagella. conditions. -the synthesis of organic molecules from inorganic molecules using light as an energy source cell while the macronucleus in each cell disintegrates, (5) the cells Many dinoflagellates are armored, with cellulose plates around their plasma membrane for protection. B. Eukaryotic flagella have the motor protein dynein whereas the prokaryotic one does not. It lacks Stramenopile - Wikipedia -Decomposers are autotrophic Flagellated cells are not produced by members of this group, but non-planktonic diatoms may be observed to move by gliding. sperm Rhizaria C. Amoebozoa D. Stramenopila E. Alveolata. Members of the supergroup Amoebozoa are characterized by: B. the remaining micronucleus undergoes mitosis to produce two, (4) of Stramenopiles, which include brown algae, diatoms and oomycetes, possess two laterally inserted flagella. Members of this subgroup range in size from single-celled diatoms to the massive and multicellular kelp. As a relic of secondary endosymbiosis, stramenopiles possess unusually complex organelle membranes. Which statement most accurately describes the evolutionary relationships among the three domains? C. osmotrophic C. Encourage sustainable fishing (Please note that some textbooks are slightly out of date, and still refer to the Stramenopiles and Alveolates as supergroup Chromalveolata)[1]. The chromalveolates can be subdivided into alveolates and stramenopiles. mitotically to form eight new haploid micronuclei, (7) the two haploid Cells are stained purple. Type III systems bind to the cellular membrane by slimy mucilage and toxins diffuse across the membrane, whereas Type IV systems infect cells using pili as transfer tubes.