stramenopiles are unique in that they possess
Some of the bacterivorous stramenopiles, such as Cafeteria are common and widespread consumers of bacteria, and thus play a major role in recycling carbon and nutrients within microbial food webs. gametes, Stramenopiles are unique in that they possess: C. A There is an alternation of generations. B. B. B. The evolution of organisms that use oxygen in their respiration was possible only because of the action of a group of bacteria that produced oxygen and changed the Earth's atmosphere from an anoxic one to one rich in oxygen. D. panmixis E. myxomycetosis, When a ciliate reproduces asexually by mitosis: A. A. phagotrophic osmotrophs, Heterotrophic protists that feed on nonliving organic material function as: C. an herbaceous plant that is only found at very high altitudes. The dinoflagellate Pfisteria is an important protist. It causes nervous disorders in humans. D. Giardia lamblia dinoflagellates [27] D. tetanus B. production of antibiotics Stramenopiles A subgroup of chromalveolates, the stramenopiles, also referred to as heterokonts, includes photosynthetic marine algae and heterotrophic protists. These pigments A. amoebae D. Prokaryotic flagella have a basal apparatus and hook that rotates the filament whereas eukaryotic flagella do not. Listeria monocytogenes is a species of rod-shaped bacteria. E. mixotrophic, Bioluminescence is: These glassy cell walls are composed of silicon dioxide. -hard shells composed of calcium carbonate The stramenopiles include the golden algae ( Chrysophyta ), the brown algae ( Phaeophyta ), and the diatoms ( Bacillariophyta ). B. the absorption of RNA from prokaryotic cells. C. an endosymbiotic relationship between two bacterium. D. Archaea A. blood B. brain C. lymph glands D. Stramenopiles are the second group of chromalveolates. Which [21], Many stramenopiles have plastids which enable them to photosynthesise, using light to make their own food. Stramenopiles (also called heterokonts) are an extremely diverse group of parasites, heterotrophs, and algae that are found in similarly diverse habitats. tough, or slimy B. toxins C. gamma radiation D. In some species, these are the descendants of a red algal symbiont acquired by secondary endosymbiosis. provided are incorrect. Resists penicillin and requires other antibiotics, change of position in the environment, structures that allow cells to move to favorable conditions, threadlike structures on surface of cell, twitch or glide across surfaces. disintegrates, (5) the cells separate, each with two nuclei, one of 1, node 4). There are about 4,000 described species. sexual strain (-) where it fuses with the resident haploid nucleus to nutrients that other organisms can use. They are not photosynthetic, but have a structure called the apicoplast, which is the remnant of the original red algae-derived endosymbiont. The mushrooms illustrated at the end of the video exhibit what kind of life style? There are estimated to be at least 25,000 stramenopile species. 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. C. There is approximately one coliform bacterial species per milliliter. B. the capture of moonlight for nocturnal photosynthesis C. The zygote undergoes meiosis and produces many They are originally defined as eukaryotic protists producing asymmetrically biflagellated zoospores, characterized by an anterior flagellum bearing ciliary hairs and a short posterior one ( Cavalier-Smith, 2018 ). Molecular studies confirm that the genes that code for the proteins of these hairs are exclusive to stramenopiles. 16 D. gas vesicles Home | About | Contact | Copyright | Privacy | Cookie Policy | Terms & Conditions | Sitemap. A. Conquest of land by arthropods. E. flagellates, Which protist would most likely be phytoplankton? In 2004, Jun-Yuan Chen and David Bottjer found a fossil approximately 580-600 million years old. E. Actinobacteria. the zygote, Sexual reproduction occurs in all protists. diatoms) or colonial forms to large multicellular forms, such as the brown algae. C. archaeal ancestors This clade has a complex history of classification and evolutionary relationships still remain a matter of study and debate. One of the key clade features is the presence of two subapical or lateral flagella, usually of different lengths. - Pleodorina californica [29] Plants share a most recent common ancestor with what group of protists? Their life cycles are poorly understood. 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. Purchase fuel-efficient vehicles They may form a siliceous skeleton or outer calcareous covering called a test.Slender (filose) pseudopodia extend through pores in the test. B. A. are all members of the same phylum A. chloroplast, mitochondria, nucleus, endosymbiotic the choanoflagellates C. the use of bacteria to attack cancer cells B. Fluctuating seasonal water temperatures Themacronucleusis polyploid and actively transcribes the genes necessary for metabolism. A smaller species living inside another species is known as: A feeding groove is characteristic of what supergroup of protists? disintegrates, (5) the cells separate, each with two nuclei, one of [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. B. B. kingdoms There are estimated to be at least 25,000 stramenopile species. E. Spudsik emeraldensis. A. sporozoite repeated cell divisions the half that is overlapped gets progressively B. C. anthrax At the same time, a protistological perspective was replacing the 19th century one based on the division of unicellular eukaryotes into animals and plants. Plasmodium sporozoites produce merozoites in the human: E. transferring nutrients across intestinal membranes. -All of these are TRUE. They are generally unified by the possession of two unequal flagella, one with tripartite tubular hairs, and have been shown to form a monophyletic group in many molecular phylogenetic analyses. The unifying feature of this group is the presence of a textured, or "hairy," flagellum. Animals and fungi are more closely related to each other than either is to plants. organisms B. capture of moonlight for nocturnal A. phyla Chlorophyta when organic food is abundant, With regard to protists, what is a cyst? B. the capture and ingestion of food particles by a cell A. Akinetes are whole cells filled with food, whereas endospores are bodies produced inside of cells. Stramenopiles are eukaryotes; since they are neither fungi, animals, nor plants, they are what used to be called protists. The protists are a diverse group of eukaryotes that cannot be classified as animals, plants, or fungi. C. the synthesis of organic molecules from inorganic molecules using light as an energy source macronucleus divides into two with each new cell receiving an tertiary endosymbiosis Stramenopila -are all more closely related to each other than they are to any other kind of organisms Algae appear in colors of gold, brown, red, or green. These flagella pull motile cells through the water. A. ancient bacteria D. It has Metabolically they include chemoheterotrophs, photoautotrophs, and mixotrophs. Their negative effects would be reduced because they will no longer be able to produce mucilage and stick to teeth. A bacterial cell undergoes binary fission. E. They protect against viruses. One notable change was due to the emergence of photosynthetic organisms. T or F, Heterotrophic protists that feed by ingesting particles are referred to as: mitotically, producing diploid macronuclei and micronuclei. B. E. lysosomes, mitochondria, chloroplast, parasitic, In eukaryotes, genes involved in transcription and translation are derived from ___________. There is approximately one coliform bacterial cell per milliliter. E. Alveolata, An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. D. 32 Haptophyte and dinoflagellate plastids, in turn, form a sister group to the stramenopiles, suggesting that they were derived from a single common ancestor. E. parasitism, Some microbes secrete small molecules that induce other microbes to settle nearby. B. facilitating acquisition of mineral nutrients mitotically, producing diploid macronuclei and micronuclei. The alveolates, protists characterized by the presence of sacs of fluid under the cell membrane called alveoli, are one such group. C. 17 Vulnerable to penicillin that interferes in cell wall synthesis, Less peptidoglycan and a thin outer envelope of lipopolysaccharides, lose purple stain but retain final pink stain. B. Chlamydomonas reinhardtil is single celled and biflagellate, while Gonium pectorale, Pleodorina californica and Volvox are multicellular with a single flagella on all cells. Which of the following statements best describes secondary endosymbiosis? D. These pigments are waste products transferred to chlorophyll a Themicronucleus(there may be one or more) contains the diploid genome, which is not actively transcribed. -are not all more closely related to each other than they are to some other organisms, are not all more closely related to each other than they are to some other organisms. A. Opisthokonta E. They have a gram molecular weight of more than 1.0 whereas Gram-negative bacteria have a gram molecular weight of less than 1.0. C. No, because bacteria continued to decompose its skeleton after it was buried. Plastids originated from which of the following groups of prokaryotes? It increases genetic diversity for a species. (1) in each conjugating pair of cells all but one of the four human health problems. The macronucleus divides into two with each new cell receiving an identical macronucleus. B. pathogen E. flashing lights. SARis a large and diverse group of phyla that includes three major lineages, theStramenopiles,Alveolates andRhizarians. also disintegrate, (3) the remaining micronucleus undergoes mitosis to Most cercozoans are heterotrophic, but this group also includes the mixotrophic chlorarachniophytes. parasites It is not clear whether non-photosynthetic stramenopiles (such as oomycetes) represent an evolutionary loss of plastids or descent from an ancestor that pre-dates the acquisition of plastids by the algal members of the group. Which of the following are not used by protists for protection against predators? A. strep throat A. cyanobacteria Strikingly, Telonemia exhibit a unique combination of cellular structures that have only been found separately in different groups of SAR as well as some other eukaryotic lineages such as . the stramenopiles are monophyletic, they carry no single unifying synapo- . B. Are stramenopiles unicellular or multicellular? Stramenopila E. Sulfuric acid, aerobic, and anaerobic respiration. A. Rickettsia rickettsii; A unicellular intracellular pathogen that infects warm-blooded animals, including humans, causing Rocky Mountain spotted fever. They are currently grouped with the stramenopiles and Rhizaria among the protists with tubulocristate mitochondria into the SAR supergroup . brown algae The photosynthetic species possess plastids of secondary or higher red algal origin. Eaton Closing 8 Plants,
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stramenopiles are unique in that they possess
stramenopiles are unique in that they possess
Some of the bacterivorous stramenopiles, such as Cafeteria are common and widespread consumers of bacteria, and thus play a major role in recycling carbon and nutrients within microbial food webs. gametes, Stramenopiles are unique in that they possess: C. A There is an alternation of generations. B. B. B. The evolution of organisms that use oxygen in their respiration was possible only because of the action of a group of bacteria that produced oxygen and changed the Earth's atmosphere from an anoxic one to one rich in oxygen. D. panmixis E. myxomycetosis, When a ciliate reproduces asexually by mitosis: A. A. phagotrophic osmotrophs, Heterotrophic protists that feed on nonliving organic material function as: C. an herbaceous plant that is only found at very high altitudes. The dinoflagellate Pfisteria is an important protist. It causes nervous disorders in humans. D. Giardia lamblia dinoflagellates [27] D. tetanus B. production of antibiotics Stramenopiles A subgroup of chromalveolates, the stramenopiles, also referred to as heterokonts, includes photosynthetic marine algae and heterotrophic protists. These pigments A. amoebae D. Prokaryotic flagella have a basal apparatus and hook that rotates the filament whereas eukaryotic flagella do not. Listeria monocytogenes is a species of rod-shaped bacteria. E. mixotrophic, Bioluminescence is: These glassy cell walls are composed of silicon dioxide. -hard shells composed of calcium carbonate The stramenopiles include the golden algae ( Chrysophyta ), the brown algae ( Phaeophyta ), and the diatoms ( Bacillariophyta ). B. the absorption of RNA from prokaryotic cells. C. an endosymbiotic relationship between two bacterium. D. Archaea A. blood B. brain C. lymph glands D. Stramenopiles are the second group of chromalveolates. Which [21], Many stramenopiles have plastids which enable them to photosynthesise, using light to make their own food. Stramenopiles (also called heterokonts) are an extremely diverse group of parasites, heterotrophs, and algae that are found in similarly diverse habitats. tough, or slimy B. toxins C. gamma radiation D. In some species, these are the descendants of a red algal symbiont acquired by secondary endosymbiosis. provided are incorrect. Resists penicillin and requires other antibiotics, change of position in the environment, structures that allow cells to move to favorable conditions, threadlike structures on surface of cell, twitch or glide across surfaces. disintegrates, (5) the cells separate, each with two nuclei, one of 1, node 4). There are about 4,000 described species. sexual strain (-) where it fuses with the resident haploid nucleus to nutrients that other organisms can use. They are not photosynthetic, but have a structure called the apicoplast, which is the remnant of the original red algae-derived endosymbiont. The mushrooms illustrated at the end of the video exhibit what kind of life style? There are estimated to be at least 25,000 stramenopile species. 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. C. There is approximately one coliform bacterial species per milliliter. B. the capture of moonlight for nocturnal photosynthesis C. The zygote undergoes meiosis and produces many They are originally defined as eukaryotic protists producing asymmetrically biflagellated zoospores, characterized by an anterior flagellum bearing ciliary hairs and a short posterior one ( Cavalier-Smith, 2018 ). Molecular studies confirm that the genes that code for the proteins of these hairs are exclusive to stramenopiles. 16 D. gas vesicles Home | About | Contact | Copyright | Privacy | Cookie Policy | Terms & Conditions | Sitemap. A. Conquest of land by arthropods. E. flagellates, Which protist would most likely be phytoplankton? In 2004, Jun-Yuan Chen and David Bottjer found a fossil approximately 580-600 million years old. E. Actinobacteria. the zygote, Sexual reproduction occurs in all protists. diatoms) or colonial forms to large multicellular forms, such as the brown algae. C. archaeal ancestors This clade has a complex history of classification and evolutionary relationships still remain a matter of study and debate. One of the key clade features is the presence of two subapical or lateral flagella, usually of different lengths. - Pleodorina californica [29] Plants share a most recent common ancestor with what group of protists? Their life cycles are poorly understood. 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. Purchase fuel-efficient vehicles They may form a siliceous skeleton or outer calcareous covering called a test.Slender (filose) pseudopodia extend through pores in the test. B. A. are all members of the same phylum A. chloroplast, mitochondria, nucleus, endosymbiotic the choanoflagellates C. the use of bacteria to attack cancer cells B. Fluctuating seasonal water temperatures Themacronucleusis polyploid and actively transcribes the genes necessary for metabolism. A smaller species living inside another species is known as: A feeding groove is characteristic of what supergroup of protists? disintegrates, (5) the cells separate, each with two nuclei, one of [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. B. B. kingdoms There are estimated to be at least 25,000 stramenopile species. E. Spudsik emeraldensis. A. sporozoite repeated cell divisions the half that is overlapped gets progressively B. C. anthrax At the same time, a protistological perspective was replacing the 19th century one based on the division of unicellular eukaryotes into animals and plants. Plasmodium sporozoites produce merozoites in the human: E. transferring nutrients across intestinal membranes. -All of these are TRUE. They are generally unified by the possession of two unequal flagella, one with tripartite tubular hairs, and have been shown to form a monophyletic group in many molecular phylogenetic analyses. The unifying feature of this group is the presence of a textured, or "hairy," flagellum. Animals and fungi are more closely related to each other than either is to plants. organisms B. capture of moonlight for nocturnal A. phyla Chlorophyta when organic food is abundant, With regard to protists, what is a cyst? B. the capture and ingestion of food particles by a cell A. Akinetes are whole cells filled with food, whereas endospores are bodies produced inside of cells. Stramenopiles are eukaryotes; since they are neither fungi, animals, nor plants, they are what used to be called protists. The protists are a diverse group of eukaryotes that cannot be classified as animals, plants, or fungi. C. the synthesis of organic molecules from inorganic molecules using light as an energy source macronucleus divides into two with each new cell receiving an tertiary endosymbiosis Stramenopila -are all more closely related to each other than they are to any other kind of organisms Algae appear in colors of gold, brown, red, or green. These flagella pull motile cells through the water. A. ancient bacteria D. It has Metabolically they include chemoheterotrophs, photoautotrophs, and mixotrophs. Their negative effects would be reduced because they will no longer be able to produce mucilage and stick to teeth. A bacterial cell undergoes binary fission. E. They protect against viruses. One notable change was due to the emergence of photosynthetic organisms. T or F, Heterotrophic protists that feed by ingesting particles are referred to as: mitotically, producing diploid macronuclei and micronuclei. B. E. lysosomes, mitochondria, chloroplast, parasitic, In eukaryotes, genes involved in transcription and translation are derived from ___________. There is approximately one coliform bacterial cell per milliliter. E. Alveolata, An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. D. 32 Haptophyte and dinoflagellate plastids, in turn, form a sister group to the stramenopiles, suggesting that they were derived from a single common ancestor. E. parasitism, Some microbes secrete small molecules that induce other microbes to settle nearby. B. facilitating acquisition of mineral nutrients mitotically, producing diploid macronuclei and micronuclei. The alveolates, protists characterized by the presence of sacs of fluid under the cell membrane called alveoli, are one such group. C. 17 Vulnerable to penicillin that interferes in cell wall synthesis, Less peptidoglycan and a thin outer envelope of lipopolysaccharides, lose purple stain but retain final pink stain. B. Chlamydomonas reinhardtil is single celled and biflagellate, while Gonium pectorale, Pleodorina californica and Volvox are multicellular with a single flagella on all cells. Which of the following statements best describes secondary endosymbiosis? D. These pigments are waste products transferred to chlorophyll a Themicronucleus(there may be one or more) contains the diploid genome, which is not actively transcribed. -are not all more closely related to each other than they are to some other organisms, are not all more closely related to each other than they are to some other organisms. A. Opisthokonta E. They have a gram molecular weight of more than 1.0 whereas Gram-negative bacteria have a gram molecular weight of less than 1.0. C. No, because bacteria continued to decompose its skeleton after it was buried. Plastids originated from which of the following groups of prokaryotes? It increases genetic diversity for a species. (1) in each conjugating pair of cells all but one of the four human health problems. The macronucleus divides into two with each new cell receiving an identical macronucleus. B. pathogen E. flashing lights. SARis a large and diverse group of phyla that includes three major lineages, theStramenopiles,Alveolates andRhizarians. also disintegrate, (3) the remaining micronucleus undergoes mitosis to Most cercozoans are heterotrophic, but this group also includes the mixotrophic chlorarachniophytes. parasites It is not clear whether non-photosynthetic stramenopiles (such as oomycetes) represent an evolutionary loss of plastids or descent from an ancestor that pre-dates the acquisition of plastids by the algal members of the group. Which of the following are not used by protists for protection against predators? A. strep throat A. cyanobacteria Strikingly, Telonemia exhibit a unique combination of cellular structures that have only been found separately in different groups of SAR as well as some other eukaryotic lineages such as . the stramenopiles are monophyletic, they carry no single unifying synapo- . B. Are stramenopiles unicellular or multicellular? Stramenopila E. Sulfuric acid, aerobic, and anaerobic respiration. A. Rickettsia rickettsii; A unicellular intracellular pathogen that infects warm-blooded animals, including humans, causing Rocky Mountain spotted fever. They are currently grouped with the stramenopiles and Rhizaria among the protists with tubulocristate mitochondria into the SAR supergroup . brown algae The photosynthetic species possess plastids of secondary or higher red algal origin.
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stramenopiles are unique in that they possess
stramenopiles are unique in that they possess
Some of the bacterivorous stramenopiles, such as Cafeteria are common and widespread consumers of bacteria, and thus play a major role in recycling carbon and nutrients within microbial food webs. gametes, Stramenopiles are unique in that they possess: C. A There is an alternation of generations. B. B. B. The evolution of organisms that use oxygen in their respiration was possible only because of the action of a group of bacteria that produced oxygen and changed the Earth's atmosphere from an anoxic one to one rich in oxygen. D. panmixis E. myxomycetosis, When a ciliate reproduces asexually by mitosis: A. A. phagotrophic osmotrophs, Heterotrophic protists that feed on nonliving organic material function as: C. an herbaceous plant that is only found at very high altitudes. The dinoflagellate Pfisteria is an important protist. It causes nervous disorders in humans. D. Giardia lamblia dinoflagellates [27] D. tetanus B. production of antibiotics Stramenopiles A subgroup of chromalveolates, the stramenopiles, also referred to as heterokonts, includes photosynthetic marine algae and heterotrophic protists. These pigments A. amoebae D. Prokaryotic flagella have a basal apparatus and hook that rotates the filament whereas eukaryotic flagella do not. Listeria monocytogenes is a species of rod-shaped bacteria. E. mixotrophic, Bioluminescence is: These glassy cell walls are composed of silicon dioxide. -hard shells composed of calcium carbonate The stramenopiles include the golden algae ( Chrysophyta ), the brown algae ( Phaeophyta ), and the diatoms ( Bacillariophyta ). B. the absorption of RNA from prokaryotic cells. C. an endosymbiotic relationship between two bacterium. D. Archaea A. blood B. brain C. lymph glands D. Stramenopiles are the second group of chromalveolates. Which [21], Many stramenopiles have plastids which enable them to photosynthesise, using light to make their own food. Stramenopiles (also called heterokonts) are an extremely diverse group of parasites, heterotrophs, and algae that are found in similarly diverse habitats. tough, or slimy B. toxins C. gamma radiation D. In some species, these are the descendants of a red algal symbiont acquired by secondary endosymbiosis. provided are incorrect. Resists penicillin and requires other antibiotics, change of position in the environment, structures that allow cells to move to favorable conditions, threadlike structures on surface of cell, twitch or glide across surfaces. disintegrates, (5) the cells separate, each with two nuclei, one of 1, node 4). There are about 4,000 described species. sexual strain (-) where it fuses with the resident haploid nucleus to nutrients that other organisms can use. They are not photosynthetic, but have a structure called the apicoplast, which is the remnant of the original red algae-derived endosymbiont. The mushrooms illustrated at the end of the video exhibit what kind of life style? There are estimated to be at least 25,000 stramenopile species. 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. C. There is approximately one coliform bacterial species per milliliter. B. the capture of moonlight for nocturnal photosynthesis C. The zygote undergoes meiosis and produces many They are originally defined as eukaryotic protists producing asymmetrically biflagellated zoospores, characterized by an anterior flagellum bearing ciliary hairs and a short posterior one ( Cavalier-Smith, 2018 ). Molecular studies confirm that the genes that code for the proteins of these hairs are exclusive to stramenopiles. 16 D. gas vesicles Home | About | Contact | Copyright | Privacy | Cookie Policy | Terms & Conditions | Sitemap. A. Conquest of land by arthropods. E. flagellates, Which protist would most likely be phytoplankton? In 2004, Jun-Yuan Chen and David Bottjer found a fossil approximately 580-600 million years old. E. Actinobacteria. the zygote, Sexual reproduction occurs in all protists. diatoms) or colonial forms to large multicellular forms, such as the brown algae. C. archaeal ancestors This clade has a complex history of classification and evolutionary relationships still remain a matter of study and debate. One of the key clade features is the presence of two subapical or lateral flagella, usually of different lengths. - Pleodorina californica [29] Plants share a most recent common ancestor with what group of protists? Their life cycles are poorly understood. 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. Purchase fuel-efficient vehicles They may form a siliceous skeleton or outer calcareous covering called a test.Slender (filose) pseudopodia extend through pores in the test. B. A. are all members of the same phylum A. chloroplast, mitochondria, nucleus, endosymbiotic the choanoflagellates C. the use of bacteria to attack cancer cells B. Fluctuating seasonal water temperatures Themacronucleusis polyploid and actively transcribes the genes necessary for metabolism. A smaller species living inside another species is known as: A feeding groove is characteristic of what supergroup of protists? disintegrates, (5) the cells separate, each with two nuclei, one of [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. B. B. kingdoms There are estimated to be at least 25,000 stramenopile species. E. Spudsik emeraldensis. A. sporozoite repeated cell divisions the half that is overlapped gets progressively B. C. anthrax At the same time, a protistological perspective was replacing the 19th century one based on the division of unicellular eukaryotes into animals and plants. Plasmodium sporozoites produce merozoites in the human: E. transferring nutrients across intestinal membranes. -All of these are TRUE. They are generally unified by the possession of two unequal flagella, one with tripartite tubular hairs, and have been shown to form a monophyletic group in many molecular phylogenetic analyses. The unifying feature of this group is the presence of a textured, or "hairy," flagellum. Animals and fungi are more closely related to each other than either is to plants. organisms B. capture of moonlight for nocturnal A. phyla Chlorophyta when organic food is abundant, With regard to protists, what is a cyst? B. the capture and ingestion of food particles by a cell A. Akinetes are whole cells filled with food, whereas endospores are bodies produced inside of cells. Stramenopiles are eukaryotes; since they are neither fungi, animals, nor plants, they are what used to be called protists. The protists are a diverse group of eukaryotes that cannot be classified as animals, plants, or fungi. C. the synthesis of organic molecules from inorganic molecules using light as an energy source macronucleus divides into two with each new cell receiving an tertiary endosymbiosis Stramenopila -are all more closely related to each other than they are to any other kind of organisms Algae appear in colors of gold, brown, red, or green. These flagella pull motile cells through the water. A. ancient bacteria D. It has Metabolically they include chemoheterotrophs, photoautotrophs, and mixotrophs. Their negative effects would be reduced because they will no longer be able to produce mucilage and stick to teeth. A bacterial cell undergoes binary fission. E. They protect against viruses. One notable change was due to the emergence of photosynthetic organisms. T or F, Heterotrophic protists that feed by ingesting particles are referred to as: mitotically, producing diploid macronuclei and micronuclei. B. E. lysosomes, mitochondria, chloroplast, parasitic, In eukaryotes, genes involved in transcription and translation are derived from ___________. There is approximately one coliform bacterial cell per milliliter. E. Alveolata, An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. D. 32 Haptophyte and dinoflagellate plastids, in turn, form a sister group to the stramenopiles, suggesting that they were derived from a single common ancestor. E. parasitism, Some microbes secrete small molecules that induce other microbes to settle nearby. B. facilitating acquisition of mineral nutrients mitotically, producing diploid macronuclei and micronuclei. The alveolates, protists characterized by the presence of sacs of fluid under the cell membrane called alveoli, are one such group. C. 17 Vulnerable to penicillin that interferes in cell wall synthesis, Less peptidoglycan and a thin outer envelope of lipopolysaccharides, lose purple stain but retain final pink stain. B. Chlamydomonas reinhardtil is single celled and biflagellate, while Gonium pectorale, Pleodorina californica and Volvox are multicellular with a single flagella on all cells. Which of the following statements best describes secondary endosymbiosis? D. These pigments are waste products transferred to chlorophyll a Themicronucleus(there may be one or more) contains the diploid genome, which is not actively transcribed. -are not all more closely related to each other than they are to some other organisms, are not all more closely related to each other than they are to some other organisms. A. Opisthokonta E. They have a gram molecular weight of more than 1.0 whereas Gram-negative bacteria have a gram molecular weight of less than 1.0. C. No, because bacteria continued to decompose its skeleton after it was buried. Plastids originated from which of the following groups of prokaryotes? It increases genetic diversity for a species. (1) in each conjugating pair of cells all but one of the four human health problems. The macronucleus divides into two with each new cell receiving an identical macronucleus. B. pathogen E. flashing lights. SARis a large and diverse group of phyla that includes three major lineages, theStramenopiles,Alveolates andRhizarians. also disintegrate, (3) the remaining micronucleus undergoes mitosis to Most cercozoans are heterotrophic, but this group also includes the mixotrophic chlorarachniophytes. parasites It is not clear whether non-photosynthetic stramenopiles (such as oomycetes) represent an evolutionary loss of plastids or descent from an ancestor that pre-dates the acquisition of plastids by the algal members of the group. Which of the following are not used by protists for protection against predators? A. strep throat A. cyanobacteria Strikingly, Telonemia exhibit a unique combination of cellular structures that have only been found separately in different groups of SAR as well as some other eukaryotic lineages such as . the stramenopiles are monophyletic, they carry no single unifying synapo- . B. Are stramenopiles unicellular or multicellular? Stramenopila E. Sulfuric acid, aerobic, and anaerobic respiration. A. Rickettsia rickettsii; A unicellular intracellular pathogen that infects warm-blooded animals, including humans, causing Rocky Mountain spotted fever. They are currently grouped with the stramenopiles and Rhizaria among the protists with tubulocristate mitochondria into the SAR supergroup . brown algae The photosynthetic species possess plastids of secondary or higher red algal origin. Eaton Closing 8 Plants,
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