. A. the kingdom Protista A. freshwater or marine organisms that are suspended on or near the surface of water. Depending upon the thickness of the cell wall and their ability to move, spores inSpirogyracan be of three types aplanospores (thin-walled and non-motile), akinetes (thick-walled and non-motile) and azygospores (thin-walled and motile). All of the above would help reduce the potential for human exposure to a "red tide". D. African sleeping sickness - a trypanosome, _________ is a mixotrophic protozoan that is able to combine autotrophic and heterotrophic nutritional modes. Which of the following structures is NOT related to choanoflagellate structure? Eukaryotes have a nucleus and other membrane bound organelles, and most eukaryotes are unicellular. A. archaeplastids E. all of the choices are differences that separate the algae from plants, Which organelles serve as the energy centers for most Protists? The presence of a light trapping pigment. D. sporozoanflexing the pellicle. A. is always asexual fission C. never have specialized tissues Many species of amoebas that have lobe-or tube-shaped, rather than threadlike, psuedopodia. C. excavates A fellow student says to you, "All diseases are caused by coccus bacteria, and all coccus bacteria cause diseases." Give two examples of bacteria that can be used to disprove . Use CDC materials to raise awareness and prevent illness: To receive updates about harmful algae and cyanobacteria, enter you email address below: We take your privacy seriously. They are For example, although no such serious diseases are found to be caused bythem,it can spoil drinking water, and also its abundant growth in the water bodies can cause nuisance in swimming and fishing. We examined the effect of GA on endothelium-dependent vasorelaxati a nucleated cell engulfed an aerobic bacterium which evolved into mitochondria. C. prokaryotes evolved when an aerobic bacterium engulfed a cyanobacterium. -chlorophyll c Pheravut Wongsawad, Yuwadee Peerapornpisal (2014). The former affects the Latin American population, and the latter . Plasmodium B. lack strengthened cell walls D. mitochondria and nucleus, Which protist is NOT correctly linked to the type of movement it shows? Kinetoplastids feed on many prokaryotes and are also parasites, they can cause Chagas disease, which is transmitted by blood-sucking insects and can lead to congestive heart failure. Study guides. mitochondria and Endoplasmic reticulum A form of alternation of generation characterizes the life cycle of. Describe the purpose of the chloroplast, the pyrenoid, and the red eyespot in algae. A. Ulva In the United States and part of North America, this disease is caused by Streptobacillus moniliformis, a non-motile, Gram-negative bacterium that belongs to the Family Leptotrichiaceae. confusion or disorientation. Cellular slime molds and radiolarians If a public health official was trying to reduce the potential for human exposure to a "red tide" which of the following actions would they take? lack strengthened cell walls. Place a ban on eating fish that were exposed to the dinoflagellate Alexandrium catanella Chromalveolates. The thallus is un-branched and filamentous shaped, measuring approximately 10 to 100 m in width and may grow up to several centimeters in length. )Malaria D. None of the above. Diarrhea. Find information for animal owners, healthcare providers, veterinarians, and poison center professionals. False, Which of the following organisms belong to the supergroup Excavates? The presence of mitochondria within the cell. A. sporozoa Vegetative and sexual reproduction in Spirogyra is common, whereas asexual reproduction occurs occasionally. C. wrappings around sushi rolls. These are under alveolates and are characterized by cells that are reinforced by cellulose plates. fish ick - a ciliate Rhizarians: Three groups; Radiolarians, Forams, and cercozoans, Many of these species are among the organisms referred to as Amoebas. C. Chara B. developing a vaccination that would prevent the ability of the merozoites to reproduce within the hosts bloodstream The fusion of these gametes results in the formation of a zygote which is diploid. C. Entamoeba. What characteristics of the slime molds distinguish them from fungi? This classifies it as a heterotrophic protist. D. eukaryotic. aerobic bacteria evolved and became mitochondria, & cyanobacteria evolved & became chloroplast. Which statements about this organism is/are true? D. cellular slime molds and radiolarians A. eukaryotic cells acquired mitochondria and plastids by engulfing free-living bacteria and developed a symbiotic relationship with them. Bacteria being classified as a protist, the slime molds were classified as: Which of the following organisms of supergroup excavata lack mitochondria and produce ATP by fermentation? There are several tick-borne diseases that range in severity and symptoms. Saprolegnia, a ________, is feeding on the dead insect pictured here. They use pseudopodia to swim, test formation, and feeding. Spirogyra exists in a filamentous form which often forms masses that float near streams and ponds, buoyed by oxygen bubbles released during . C. diploid C. zooflagellatesflagella Euglenozoans are are distinguished between the other two because of a rod with a crystalline structure in their flagella. 9 Are there any serious diseases caused by Spirogyra? Slime molds lack cell walls. D. lack plant structures such as true roots, stems, and leaves. C. excavates C. water mold A teacher walks into the Classroom and says If only Yesterday was Tomorrow Today would have been a Saturday Which Day did the Teacher make this Statement? What does an amoeboid use to ingest food? Image Source: Wikipedia. True False, A supergroup is a taxonomic category that may encompass kingdoms and phyla. Harmful algae or cyanobacteria can look like foam, scum, paint, or mats on the surface of water and can be different colors. During indirect lateral conjugation, outgrowths emerge on the sides of the septum, which eventually leads to the formation of an opening at the lateral side of the cells. B. haploid Giardia A. archaeplastids and rhizaria What are the disadvantages of a clapper bridge? B. ciliate Which of the following protozoans is mismatched with the disease that it causes? The various forms of algae (Archaeplastids) are NOT considered plants because they, lack plant structures such as true roots, stems, and leaves. 2.) Entamoeba histolytica. Most are heterotrophs, living in freshwater and soil. B. D. foraminifernas, radiolarians and fungi, A flagellated protist that is sexually transmitted is C. Domain Archaea. Select all responses that describe the green algae. A. nutria and birds. They include land plants and the green algae, Chlorophyta. C. slime molds E. Paramecium. D. all of these characteristics distinguish slime molds from fungi, The endosymbioant hypothesis proposes all of the following EXCEPT C. domain Archaea multicellular -filtering agents All of the above are true. chloroplasts and Golgi Bodies A. pseudopodia-movement and feeding Imagine you are working for the Florida Public Health Department and you have been assigned the task of preventing malaria from spreading throughout the southern Everglades. It is a unicellular organism but can be seen in freshwater bodies as it clumps together to form a multicellular structure. Acting as an essential food source for humans since they provide a rich source of nutrients including vitamin A and E. Providing a source of natural bioactive compounds that contains antibiotic, antiviral, antioxidant, anti-inflammatory, and cytotoxic properties. The Kingdom Protista is characterized as having _____, making it the most diverse of the eukaryotic kingdoms. C. Prokaryotes evolved when an aerobic bacterium engulfed a cyanobacterium Chromalveolates that live along the rocky shores of the north temperate zones are able to withstand pounding tides and drying because of their holdfasts and mucilaginous cell walls. C. amoeba Flukes are parasitic worms that are more commonly seen in animals, although they can also infect people. One of the two adjacent cells acts as male gametangia, whereas the other acts as the female gametangia. B. humans; mosquitoes A. is always asexual fission. A. True False, Some protistans can reproduce by both sexual and asexual means. mosquito; humans Which of the following are examples of the importance of rhizarian tests to humans? ciliates-cilia C. multicellular green algae B. ciliates-cilia The index will continue to evolve as additional topics are added. C. Chlamydomonas C. avoid eating shellfish that live in coastal areas that have a high influx of nutrients sporozoanflexing the pellicle Under favorable conditions, fragmentation is the most common method of reproduction in. C. Plasmodium falciparum A. euglenoids, amoeboids, and cellular slime molds -polishing agents is always asexual fission. We'll go over some of the main types, including how they . The organisms pictured are foraminiferans, members of Supergroup Excavates. red algae Their photosynthetic activity affects global carbon dioxide levels. D. lack plant structures such as true roots, stems, and leaves. Then the opposite cells develop protuberances or outgrowths that extend and come in contact with one another. CDC twenty four seven. The term denotes several diseases caused by protozoan trypanosomes. plasmodium falciparum Kingdom: Protista Subkingdom: Protozoa Disease caused: Malaria Stain used? pyrenoid in protists is you for starch storage. Eukaryotic cells acquired nuclei and flagella by engulfing free-living bacteria and developed a symbiotic relationship with them. The vegetative state of the slime mold is mobile and amoeboid. Besides the large vacuole, the cytoplasm also consists of the chloroplast that forms a spiral around the vacuole and consists of specialized bodies called pyrenoids. Besides, species can also be identified based on the structure of the reproductive spores and the type of conjugation. The primary method of identification of Spirogyra is by the observation of the morphological structure of the organism, but other methods of identification are also available. They include multicellular and unicellular organisms. 23) The statement that "all diseases are caused by coccus bacteria, and all coccus bacteria cause diseases" is incorrect.Not all diseases are brought . In species reproducing by indirect lateral conjugation, in every second cell of the filament, a zygospore is formed. Causing blooms is a theory to help increasing carbon levels, but ecological effect is unknown. *4. C. Amoeba E. paramecium, Which description best supports the endosymbiotic theory of organelles? The various forms of algae (Archaeplastids) are NOT considered plants because they A ____ is a photosynthesis protist with two flagella and proactive cellulose plates that is an important component of phytoplankton. A. amoebozoans True False, The 1840s Irish potato famine was caused by a water mold parasite on potatoes. involuntary . Plasmodial and water molds. mitochondria and chloroplasts were once free-living bacteria. C. plasmodium falciparum Unexpectedly, the pathogenicity of the environmental bacterium . Forms a large group that contains most of the amoeboid and flagellated protists that feed with threadlike pseudopodia. Paramecium. Along with the above, they may have a few mild negative impacts as well. C. is always sexual with the adult diploid. no such dieases is caused by it. b) Lateral Conjugation: It occurs between the cells of the same filament. All of the above are scenarios that would have a chance of success in preventing malaria from spreading throughout the southern Everglades. Amoebic dysentery is transmitted by (through) Under favorable conditions of growth, the walls of adjacent cells dissolve, thereby causing breakage of the filament. Two major groups: Amoebozoans and the opishthokonts. What characteristics of the slime molds distinguish them from fungi? Two hormones that maintain salt-water balance in the extracellular fluid are? They then form one unit like plasmodial slime molds, only they are separated by a plasma membrane. Green makes up two groups; Charophytes and Chlorophytes. Malaria D. The micronucleus is always for conjugative reproduction, while the micronucleus functions for general cell coding. A. place a ban on eating fish that were exposed to the dinoflagellate alexandrium catanella Micro-nucleus: Reproduction, Name the organisms that are responsible for: Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. ciliate At the same time, lack of a nutrient-rich diet, metabolic and genetic disorders, allergies, and cancer are the causes of non-communicable diseases. Macro-nucleus: Metabolic functions The organisms in most eukaryotic lineages are protists. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. Both D/P have modified mitochondria and respire anaerobically. D. All of the choices. improves cardiovascular disease through a vasorelaxant and antihypertensive effect | Find, read and . Archaeplastids & Rhizaria Mitochondria were derived from aerobic bacterium while choloroplasts were derived from cyanobacterium. A. trypanosoma brucei-sleeping sickness D. green algae, In Plasmodium, sexual reproduction occurs in the ________, while asexual reproduction occurs in _______. Nuclei were derived from aerobic bacterium while flagella were derived from motile bacteria A. mitochondria and chloroplasts were once free-living bacteria. The term "protists" is used to refer to eukaryotes that are not plants, animals or fungi. D. is always sexual with alternation of haploid and diploid generations. Learn how people and animals can get sick from harmful algae and cyanobacteria. *3.) photoautotrophic B. Volvoxfilamentous Which statement(s) about this organism is/are true? A. the kingdom Protista. These are the most complex anatomically, and resemble plants, but these similarities are analogous. C. mitochondria and endoplasmic reticulum C. the egyptian pyramids are built of this type of limestone The size of the zygospore and the nature of the spore membrane are also studied to obtain proper identification. Spirogyra (Figure 14.9; common names include water silk, mermaid's tresses, and blanket weed) is a genus of filamentous chlorophyte green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is diagnostic of the genus. never have specialized tissues. Their experienced staff provides compassionate care and individualized treatment plans to help every patient reach their maximum potential. the bite of a tsetse fly. Excavata Required fields are marked *. Spirogyra use conjunction tubes for sexual reproduction & also have spiraled chloroplast. A. is a dormant cell with a resistant outer covering. A common cause of amoebic dysentery is Thank you for taking the time to confirm your preferences. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. A. freshwater or marine organisms that are suspended on or near the surface of water. Match the supergroups with the correct description: D. african sleeping sickness-a trypanosome, _______ is a mixotrophic protozoan that is able to combine autotrophic and heterotrophic nutritional modes Spirogyra B. multicellular Which is greater 36 yards 2 feet and 114 feet 2 inch? A. diatoms D. lack plant structures such as true roots, stems, and leaves The length and width of the filament, the structure of the transverse wall (septum), number of chloroplasts per cell, and number of turns of the chloroplast, and the type of the vegetative cells are the few characteristics. C. haveing sex with an infected partner A. mitochondria and plastids prokaryotes evolved when an aerobic bacterium engulfed a cyanobacterium. John Wiley & Sons, Ltd. Bhalla, Tek & Mehta, Praveen & Bhatia, Shashi & Thakur, Nitendra & Pratush, Amit. Spirogyra (common names include water silk, mermaid's tresses, and blanket weed) is a genus of filamentous charophyte green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is characteristic of the genus. Ulva D. brown algae It is common in. True -Chromoalveolata Avoid eating shellfish that live in coastal areas that have a high influx of nutrients A. heterotrophic False, Water molds are heterotrophic because they are parasitic on fish, plants, and insects. Lateral conjugation is less often and occurs between two adjacent cells of the same filament. The endosymbiont hypothesis proposes all of the following EXCEPT A stramenopile alga with valves made of silica is called a ____. What shape do the ribbon-like chloroplasts take? These organisms may be used as index fossils to date sedimentary rock. Decrease the amount of nutrients that are washed into the aquatic ecosystem )Vaginitis B. eukaryotic cells acquired mitochondria and plastids by engulfing free-living bacteria and developed a symbiotic relationship with them. Within the same clade under Chromalveolates. All of these characteristics distinguish slime molds from fungi. A spore that is mobile, by way of one or more flagella is called a _____, The unicellular protists that have small sacs lying just beneath their plasma membranes are the _____. C. eukaryotic cells acquired nuclei and flagella by engulfing free-living bacteria and developed a symbiotic relationship with them. During DNA sequencing, the DNA is first extracted and purified, followed by amplification via PCR. Order: Zygnematales B. Giardia. What is responsible for producing colors other than green/yellow-green in algae? slime mold Which of the following alga is mismatched with its description? Saprolegnia, a _______, is feeding on the dead insect pictured at right. humans; mosquitoes B. dinoflagellates Amoebic dysentery is transmitted by (through) The name Spirogyra is derived from the Greek words, speria, meaning coil, and gyras, meaning twisted. A. spraying the edges of the Everglades with a pesticide that will kill mosquitos CDCs Cyanotoxins in Air Study? Learn how your comment data is processed. Wiki User 2013-07-22 09:44:37 This answer is: Study guides Conditions and Diseases 19 cards Where did the Jews immigrate from during World War 2 Reducing. c: Single Spirogyra cell (detached from algal filament) under phase contrast, 40x objective through 10x ocular. During unfavorable growth conditions, the cytoplasmic content of the cell shrinks and looses water, developing a hard covering around the cell, resulting in the formation of spores. Which of the characteristic(s) apply to the Supergroup Archaeplastida? is always sexual with alternation of haploid and diploid generations. by kissing bug Green algae have a structure and pigment composition much like the chloroplasts of land plants. 13). Which organelles serve as the energy centers for most Protists? Complications may include dehydration.. mitochondria and plastids. A. animals A flagellated protist that is sexually transmitted is. Harmful algae or cyanobacteria can look like foam, scum, paint, or mats on the surface of water and can be different colors. Habitat of Spirogyra. What are some of the commercial products that red algae are used for? live near Lake Okeechobee: A. heterotrophic water mold. Gold City Health and Rehab Center is one of the leading rehabilitation centers in the country. Amoeba When there is too much sugar in the bloodstream, it leads to a condition known as metabolic syndrome (Mets). Have a glance at the MCQ of Chapter 2 Science Class 8 and cross-check your answers during preparation. A. are not multicellular. E. may be asexual or any of these sexual cycles. True You will be subject to the destination website's privacy policy when you follow the link. C. the presence of a light trapping pigment Which feature has to be present in a protist in order to classify it as a photoautotroph? Morphological and molecular profiling of Spirogyra from northeastern and northern Thailand using inter simple sequence repeat (ISSR) markers. The endosymbiont hypothesis proposes all of the following EXCEPT Nuclei were derived from aerobic bacterium while flagella were derived from motile bacteria. C. having sex with an infected partner. The alternation of multicellular haploid and diploid forms. In this study, we investigated the vasorelaxant and antihypertensive effects of gallic acid (GA), a polyphenol isolated from the green alga Spirogyra sp., to assess its suitability as a therapeutic for cardiovascular diseases (CVDs). Stramenopiles: Under them; Diatoms, Golden Algae, Brown Algae, Oomycetes, Major subgroup that include some of the most important photosynthetic organisms on the planet, and some heterotrophs. -suspended in water Lyme disease is caused by the bacterium Borrelia burgdorferi and is transmitted to humans through the bite of infected blacklegged ticks (also known as deer ticks).. Anaplasmosis and ehrlichiosis are two closely related diseases (caused by the bacterium Anaplasma phagocytophilum and Ehrlichia, respectively) that are . What are the functions of these bodies? Domain Archaea. C. trichocyst-defense and capture of prey Common symptoms caused by blooms in lakes, rivers, or ponds. African sleeping sickness - a trypanosome A staph infection in food usually doesn't cause a fever. They are also known as pond scum or pond silk because of their filamentous and slimy nature that can float freely in masses over the water surfaces and are capable of movement. Euglenoids, Amoeboids & cellular slime molds This clade emerged from morphological studies of the cytoskeleton. is always sexual with the adult haploid. Rhizaria Which of the following would be a likely habitat of a charophyte? How could this information be used to estimate the initial speed of the vehicle that left the skid marks? Largest and most complex algae. Mostly unicellular group of eukaryotes. Read stories about CDC and partners harmful algae and cyanobacteria work. -includes muticellular protists At the same time, some viruses like AIDS, SARS, Hepatitis and Herpes Simplex can be deadly. The zygospore is the only diploid phase in the sexual life cycle. Spraying the edges of the Everglades with a pesticide that will kill mosquitos A. Volvox Slime molds, found in the Supergroup Amoebozoa, were once classified as fungi. Asexual reproduction is less common among Spirogyra, but it occurs in some species under unfavorable conditions by means of the formation of asexual spores like aplanospores, akinetes, and zygospores. E. A and C only. B. zooflagellates -includes foraminiferans and radiolarians. interested in participating in Foraminiferans, radiolarians & fungi True False, Most brown algae have the alternation of generations life cycle, but some species of Fungus have a diplontic life cycle. An eyespot is Common forms: Bacteria cause food poisoning, strep throat and urinary tract infections, as well as infections such as tuberculosis. B. Like other asexual spores, azygospores also develops to form a new filament. B. ciliates-cilia D. amoebozoa and excavata. What are the disadvantages of shielding a thermometer? They offer a wide range of services to help their patients recover from injuries, illnesses, and surgeries. B. Spirogyra cyst - a reproductive structure 6.) True These MCQ Questions on Microorganisms: Friend and Foe Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. B. volvox-filamentous fungi. simple? The group of protozoans that contain a unique organelle at one end of the cell that is used to penetrates a host cell: A _____ is an organism that can use either autotrophic or heterotrophic means of gaining nutrients. A viral disease is any condition that's caused by a virus. You are planning an exercise that will include the m16 and m203. (2009). -on aquatic plants Signs and symptoms you can expect with this type of staph infection include: Nausea and vomiting. True Once the condition becomes favorable, the akinete develops to form a filament. Trypanosomiasis . diatoms spirogyra Kingdom: Protista Subkingtom: Algae Disease caused: none I don't think they are stained in this slide.. amoeba proteus Kingdom: Protista Subkingdom: Protozoa Which statement(s) about this organism is/are true? animals. D. chloroplasts originated when a nucleated cell engulfed a cyanobacterium. Depending on the species, the length of the filaments can range from 100-600 m with the width ranging from 10-100 m. Chemical Composition and Biological Activities of Trans-Himalayan Alga, https://www.biologydiscussion.com/spirogyra/spirogyra-life-cycle-of-spirogyra-and-germination-of-zygospore/5585. Lateral Conjugation is of two types: Thus the sexual life cycle ofSpirogyradescribes the interchange between the only diploid-phased (2n) zygospore and the haploid phased (n) filamentous cells. Two individuals go through meiosis, disintegrate 3 of 4 micronuclei, the leftover goes through mitosis, two cells swap 1 of the two micronuclei, these two fuse causing variation.
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