These are: Debarya - like one of the narrower Mougeotia (9-16µm): no illustration available. Examples of algae are Spirogyra, Ulothrix, Ulva, Sargassum, etc. www.gangwarinstitute.com Contact info : 8400www.gangwarinstitue.com-582-582, 8604-582-582 03. 2. D . Answer verified by Toppr. 51 Kudus 59322, Jawa Tengah, Indonesia E-mail: [email protected] Abstract: Microalgae identification can be done by observing cell morphology using a micro- No more than ½ of the body of water may be treated at one time. Read the following statements. This type of vegetative reproduction is commonly met within filamentous forms, e.g., Ulothrix, Spirogyra, etc. substratum . C Both (a) and (b) D none of the above. Question 3. The brownish pigment found in both brown algae and diatoms is A. chrysolaminarin. 21. Oogamy is the fusion of non-motile egg with motile sperm. (C) The sporophyte in Riccia is more developed than that in Polytrichum. The chloroplasts shows various shape ie. Ulothrix zonata (Weber and Mohr) Kütz. Ulothrix is a genus of filamentous green algae, generally found in fresh and marine water. Its cells are normally as broad as they are long, and they thrive in the low temperatures of spring and winter. They become attached to surfaces by a modified holdfast cell. (a) Male and female sex organs are on the same individual. The ladder-like structure formed in Spirogyra is the result of (a) Asexual reproduction (b) Direct conjugation (c) Lateral conjugation (d) Scalariform conjugation. The genus Ulothrix (Cr. Spirogyra is a filamentous green algae of the, named for the helical or spiral arrangement ofthe chloroplasts. Two of the most interesting spirogyra facts are presence of spiral shape chloroplasts and reproduction by conjugation method. Haplontic life cycle found in many algae, like Volvox, Spirogyra, Ulothrix, Chlamydomonas etc. ADVERTISEMENTS: (ii) By amylum stars. E. madder. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. Named for their beautiful spiral chloroplasts, spirogyras are filamentous algae that consist of thin unbranched chains of cylindrical cells. The plant body breaks into several parts or fragments and each such fragment develops into an individual. What are some characteristics of the organism Volvox? 3. Some species of algae and fungi are found in association with each other and they are called Lichens. The brownish pigment found in both brown algae and diatoms is. Filamentous algae increase in length through cell division. Ulothrix and Oedogonium. Majority of the forms are found in marine habitats. Spirogyra. In Phaeophyceae the Unicellular forms are absent. During photosynthesis, algae produce at least half of the oxygen in Earth’s atmosphere. Fragmentation in Spirogyra In this method the body of a simple multicellular organism breaks up into smaller pieces on maturation and each fragment develops into new individuals. Options (a) Spirogyra (b) Rhizopus (c) Ulothrix (d) None of these. They may be unicellular or multicellular, and microscopic or large. Examples for this group of algae includes Chlorella, Chlamydomonas, Volvox, Spirogyra, Ulothrix, Chara and Ulva. → Algae are unicellular like Chlamydomonas, colonial like Volvox or or filamentous like spirogyra and Ulothrix. Sexual reproduction is present and may be isogamous, anisogamous or oogamous. Options (a) Spirogyra (b) Rhizopus (c) Ulothrix (d) None of these. However genetic recombination has been observed. 4. Blanket Weed can start to grow at any time of the year. Identify the statements as True (T) and False (F) w.r.t. Columella is a specialized structure found in the sporangium of (a) Spirogyra (b) Ulothrix (c) Rhizopus (d) none of these. 30. The size of plant body range from simple branched, filamentous forms (l=ctocarpus) to profusely branched forms such as kelDs (height 100 metres). Q15) Select the wrong statement. Answer: D. 6. 9) Both chlorophyll a and b are present in? Answer: A. C . Spirogyra differs from moss-protonema in having (A) pyrenoids (B) branched filaments (C) discoid chloroplasts (D) rhizoidal branches. roots, stems and leaves, mostly found in the fresh water and moist places [2]. Spirogyra. Two adjacent filaments fo Spirogyra offnis having 10 cells each are particlipating in reproduction. Effective in hard water. The genus Botrydium, Ulothrix and Vaucheria were found on damp ground such as plowed fields, places where water had been standing and creek banks. (B) In Ginkgo, male gametophyte is not independent. Which of the following do the green algae Chlamydomonas and Oedogonium have in common? It might be outdated or ideologically biased. Some commonly found green algae are: Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara. Bacterial plates showing a variety of colonies 3. Get the detailed answer: A nitrogen fixing blue green alga is (a) Ulothrix (b) Spirogyra (c) Anabaena (d) Rhizobium. (c) Stipe which is the leaf like photosynthetic organ is found in Ectocarpus. D. D . In a monoecious plant. Spirogyra: Spirogyra is a type of multi-cellular green algae that is found in freshwater ponds, lakes, and even large puddles. Spirogyra is a filamentous green alga which is common in freshwater habitats. This product effectively controls Chara, Spirogyra, Cladophora, Ulothrix and Oscillatoria; algae growth commonly found in livestock watering tanks, troughs, and ponds. (A) Spirogyra (B) Rhizobium (C) Ulothrix (D) Anabaena . Ulothrix and Spirogyra are in filamentous form. D. Spirogyra. Compared with the gametophytes of the bryophytes the gametophytes of vascular plants tend to be. 22. In which alga, motile colonies are found (A) Volvox (B) Spirogyra (C) Ulothrix (D) All of the above. SPIROGYRA ULOTHRIX Common Algae Found in Polluted Waters NAWcutA ANABAENA Common Algae that Make the Water Smell or Taste Odd vol_vox STAURASTRUM TABELLARIA OSTRACOD GOMPHOSPHAERIA CYCLOPS LAWA CYCLOPS COPEPOD Kel licotia Keratella Vorticella ROTIFERS DAPHNIA Common Protozoans Majority of the forms are found in marine habitats. Spirogyra or attached e.g. (iv) Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara are commonly found members of this class. Live cultures of Ulothrix, Spirogyra, Oedogonium, Volvox, Scenedesmus, Euglena, or Phacus. 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. It is commonly found in freshwater habitats,... One of the more striking facts pertaining to acidification is the increase in benthic filamentous green Zygnemataceae algae, particularly Zygogonium, Mougeotia, Spirogyra, and Zygnema, although other greens such as Ulothrix and Oedogonium can also become abundant ( Table III ). Spiral shape in Spirogyra, cup shaped in Chlamydomonas, star shaped in Zygnema, girdle shaped in Ulothrix; Habitat: Mostly freshwater (Spirogyra, Oedogonium, Chlamydomonas, Volvox, etc), some are marine (Sargassum, Laminaria, etc) and some are parasitic (Polysiphonia, Harvevella, Cephaleuros) The trichomes of blue-green algae part ways and get divided into many-celled segments termed as hormogonia or hormigones inside the sheath. Answer: (c) 2. www.gangwarinstitute.com Contact info : 8400www.gangwarinstitue.com-582-582, 8604-582-582 03. Answer: Ulothrix - They are green, filamentous algae, mostly found in freshwater with low salinity areas like; ponds, lakes etc. The Tetrasporine Line. Simple branched filamentous forms :- When some cells in a filament show lateral outgrowth. 3. Correct Answer: Rhizopus. Examples of algae are Spirogyra, Ulothrix, Ulva, Sargassum, etc. ... Spirogyra is a genus of green algae that belong to the order Zygnematales. C. paramylon. These plants usually have a soft and fibre-like body. Cutrine Plus under field conditions, is effective in controlling a broad range of algae including Chara, Spirogyra, Cladophora, Vaucheria, Ulothrix, Microcystis, and Oscillatoria. point where collections were made. Anisogamy (Fusion of either morphologically or physiologically If you found Ulothrix and Spirogyra in a stream and neither was reproducing, the only way you could tell them apart would be from the shape of their chloroplasts. is an unbranched filamentous green alga found in rocky littoral areas of many northern lakes. and some are also found in slow running stream or river. Hormogonia: Blue-green algae use this form of vegetative reproduction. Aquatic fern which is an excellent biofertilizer (A) Salvinia (B) Pteridium (C) Azolla (D) Marsilea . It is the primary producers and found in all ecosystems help in the different food chains. A large number of them usually grow in tangled masses. … The form and size of algae are variable. Correct Answer: Rhizopus. The trichomes of blue-green algae part ways and get divided into many-celled segments termed as hormogonia or hormigones inside the sheath. What group does the organism Protococcus belong? The brownish pigment found in both brown algae and diatoms is A. chrysolaminarin. Habitat: they are commonly found floating in fresh water resources like ponds, lake, ditches etc. Such massive blooms of Spirogyra can degrade water quality, say the authors. Homework Help. (iii) Asexual reproduction is by flagellated zoospores produced in zoosporangia. 29. The fragmentation of colonies also takes place in several blue green algae, e.g., Aphanocapsa, Aphanothece, Nostoc, etc. Sexual reproduction is present and may be isogamous, anisogamous or Oogamous. Archegonium is absent in. Get FREE solutions to all questions from chapter DIVERSITY OF THE LIVING WORLD. Field observations of its seasonal and spatial distribution indicated that it should have a low temperature and a high irradiance optimum for net photosynthesis, and at temperatures above 10°C it should show an increasingly unfavorable energy balance. Plant body of Ulothrix and Spirogyra, is gametophytic (haploid), they produce zoogametes (n) which fuses to form zygosporic (2n) diploid, which is a resting spore. Log into your account. Students also viewed 3. additional differentiation topics Chapter 17 kingdom bacteria questions and answers Sample/practice exam 1 April, questions and answers Chap002 - book solutions 55158548 Anatomy and Physiology Exam 2 Notes Anatomy - Q & A Spirogyra is a very common free-floating fresh-water alga. Cladophora is a filamentous algae that grows in deeper water at warmer temperatures and is most commonly a problem during the summer months. Green algae also contain beta-carotene and xanthophyll. The common fresh water species are U. aequalis, U. zonata etc. ALGAECIDE APPLICATION . Q13) Male gametophyte with least number of cells is present in: (CBSE AIPMT 2014) Pteris Funaria Lilium Pinus. Under the electron microscope, an axial orientation of microfibrils is visible either without chemical treatment in older, elongated cells of Stigeoclonium (fig. The In which alga, motile colonies are found (A) Volvox (B) Spirogyra (C) Ulothrix (D) All of the above. 4. 1. How many new Spirogyra plants are produced during sexual reproduction. Unbranched filamentous thallus in Ulothrix and Spirogyra, Cladophora, heterotrichous in Stigeoclonium and parenchymatous in Ulva. Which of the following do Spirogyra and Ulothrix have in common? Blanket Weed can start to grow at any time of the year. Habitat: They are mostly aquatic (both freshwater and marine) organisms. Live and/or preserved Anabaena or Nostoc colonies 5. 2. Ulothrix is a genus of green algae in the family Ulotrichaceae. Major useful product obtained from microbes (A) Vitamin (B) Single cell protein (C) Antibiotic (D) All […] They are autotrophic and perform photosynthesis. ulothrix, spirogyra. Spirogyra are free-floating green algae. For example, Volvox, Ulothrix, Spirogyra, Chara and Chlamydomonas. It is commonly found in freshwater habitats, and there are more than 400 species of Spirogyra in the world. Simple branched filamentous forms :- When some cells in a filament show lateral outgrowth. The green color is from the photosynthetic pigment, the chlorophyll. In Ulothrix/Spirogyra reduction division (meiosis) occurs at the time of zygospore formation. Plant body of Ulothrix and Spirogyra, is gametophytic (haploid), they produce zoogametes (n) which fuses to form zygosporic (2n) diploid, which is a resting spore. Field observations of its seasonal and spatial distribution indicated that it should have a low temperature and a high irradiance optimum for net photosynthesis, and at temperatures above 10°C it should show an increasingly unfavorable energy balance. Which of the following do Spirogyra and Ulothrix have in common? This type of vegetative reproduction is commonly met within filamentous forms, e.g., Ulothrix, Spirogyra, etc. Diplontic Life Cycle: Sporophytic phase (2n) is dominant, photosynthetic and independent. (NEET 2013) Discoid ((Chara), Girdle shaped (Ulothrix), reticulate (Oedogonium), spiral (Spirogyra), stellate (Zygnema) and plate like (Mougeoutia). Free unlimited access for 30 days, limited time only! Most of them are found in fresh water of tanks, ponds, lakes etc. The free floating and free swimming minute algae are known as phytoplanktons. It is simple and the most common process of reproduction in algae. Columella is a specialized sterile structure found in the sporangium of . List of 40 + multiple choice questions on agricultural microbiology! Most of the algae inhabit the aquatic environment, either freshwater or marine habitats. Ulothrix is found in A hot sandy desert B slow running water C rocky places D sea 11. Get the detailed answer: A nitrogen fixing blue green alga is (a) Ulothrix (b) Spirogyra (c) Anabaena (d) Rhizobium. 22. The free floating and free swimming minute algae are known as phytoplanktons. 1. Spirogyra measures approximately 10 to 100μm in width and may stretch centimeters long. A. Pyrenoids contain protein and oil droplets. Explanation: No explanation available. 19. This will help you to learn about the most important frequently asked objective type questions and answers on agricultural microbiology for competitive exams such as IAS and UPSC. Blanket Weed is a long thin filamentous alga, which like Ulothrix thrives in ornamental ponds. In the years 2011-2013, late autumn blooms of Spirogyra and Stigeoclonium dominated study sites, replacing the more common Ulothrix zonata. Spirogyra is a filamentous green algae of the, named for the helical or spiral arrangement of the chloroplasts. Green algae also contain beta-carotene and xanthophyll. Phaeophyceae – Brown Algae. Cellwall is three layered: the outermost layer is made up of pectose and the inner two layers of cellulose. 3.1.2 Phaeophyceae The members of phaeophyceae or brown algae are found primarily in marine habitats. Ulothrix. (D) Sexual reproduction in Volvox is isogamous. Answer and Explanation: 22. Which of the following shows zygotic meiosis? Treated water may be used for swimming, fishing, drinking, livestock watering, or … Spirogyra is a genus (about 400 species) of freshwater green algae which are found in shallow ponds, ditches and amongst vegetation at the edges of large lakes, generally growing free-floating. The mucilaginous sheath in Spirogyra gives a strong reaction for pectic substances. A rigid cell wall made up of an inner layer of cellulose and an outer layer of algin. Answer: Eukaryotic organisms that have chlorophyll a and produce O2. Structure of Spirogyra The vegetative structure or plant body is known as thallus. Fucoxanthin is found in A brown algae B green algae C red algae D blue-green algae 12. It is commonly found in freshwater areas. Ulothrix Chlorella Spirogyra Polysiphonia. View Answer. Examples for this group of algae includes Chlorella, Chlamydomonas, Volvox, Spirogyra, Ulothrix, Chara and Ulva. done clear. In isogamy, gametes are morphologically and physiologically same, in anisogamy gametes are morphologically different but physiologically same and in oogamy, gametes are both morphologically and physiologically different e.g., Ulothrix and Spirogyra members of Chlorophyceae. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. question_answerChlamydomonas, Volvox, Ulothrix, Spirogyra and Chara are the examples of classA) ChlorophyceaeB) PhaeophyceaeC) RhodophyceaeD) Cyanophyceae. Fig.4. Some commonly found green algae are: Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara (Figure 3.1a). The members of phaeophyceae or brown algae are found primarily in marine habitats. The ladder-like structure formed in Spirogyra is the result of (a) Asexual reproduction (b) Direct conjugation (c) Lateral conjugation (d) Scalariform conjugation. Welcome! It reproduces by colony formation, hormogonia, akinetes, heterocysts and endospres. Heterotrichous habit is shown by A Chlamydomonas B Oedogonium C Stigeoclonium D Ulothrix 14. generally found in fresh and marine water , The plant body consists of unbranched, uniseriate filaments. 31. These threads consist of individual cells that connect end-to-end ; Spirogyra is commonly found in clean water and it produces food through the process of photosynthesis. The stored food is floridean starch very similar to cellulose. The chlorophyll a and chlorophyll b are the two types of chlorophyll in green algae. D. bryopsidin. Algae: Classification: The class Chlorophycea is composed of a large group of freshwater green algae. They are often referred to as ‘scum’. It is commonly found in freshwater areas. They show great variation in size and form. Consider the following adaptations seen in plants: Structure of Algae. Spirogyra - They belong to the largest group of green algae and are commonly found in freshwater bodies like; deep ponds, rivers etc. 5. Accessory pigments include phycocyanin, phycoeythrin and allophycocyanin. Columella is a specialized sterile structure found in the sporangium of . B well developed cellular structure including a conducting system. The fragmentation of colonies also takes place in several blue green algae, e.g., Aphanocapsa, Aphanothece, Nostoc, etc. Ulothrix. 2. The members of this class are called ‘Brown algae’. A free living nitrogen fixing bacterium is _____ (A) Clostridium (B) Azotobacter (C) Rhizobium (D) Both A and B . 25 okt 2020. There are also other similar aquatic weeds which are filamentous algae and the most prevalent of these are Cladophera, Rhizoclonium, Vaucheria and Ulothrix (Ulothrix is a Chlorphyte like Spirogyra and looks very similar). 20. A. holdfasts B. zoospores C. bracelet-shaped chloroplasts D. conjugation tubes E. a nucleus in each cell 18. Green algae can be found in sea water, fresh water and in humid terrestial environments. Lack centriole and flagella. Meiosis takes place at time of its germination. Some grow in saline water (marine) such as U. pseudoflacca and U. flacca. The minimum retreatment interval is 14 days. Some commonly found green algae are: Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara. G. : Spirogyra. Simplest type of reproduction in plants is found in (A) Ulothrix (B) Nostoc (C) Chlamydomonas (D) Spirogyra. Spirogyra is a green algae having a filamentous structure, which measures about 10-100 micrometer in width. The ... found in chromatophores and assist in the synthesis and storage of starch. They are mainly found in marine habitats. The green color is from the photosynthetic pigment, the chlorophyll. Corn and beans are often cited as … If motile cells do occur, they do so only during reproductive phases. Spirogyra - They belong to the largest group of green algae and are commonly found in freshwater bodies like; deep ponds, rivers etc. Answer: (a) Agar. This type of reproduction occurs in Spirogyra, Ulothrix… Which of the following do Spirogyra and Ulothrix have in common? Spirogyra, Oedogonium and Cladophora are amongst the varieties most frequently encountered. Plant body is an un- branched filament consisting of a row of cylindrical cells attached end on end, usually free-floating in mass embedded in mucilages. In contrast to algae, fungi (A) Are multicellular (B) Have chitinised cell walls (C) Are non-chlorophyllous (A) 5 (B) 10 (C) 20 (D) 40 CORRECT ANSWER: B Watch Video Solution On Doubtnut App Q-38 - 15600667 Spirogyra differs from Mucor in having (A) Uninucleate gametangia It is called the . (d) Reproduction The members of Chlorophyceae reproduce vegetatively, asexually and sexually by various methods. The chlorophyll a and chlorophyll b are the two types of chlorophyll in green algae. Vegetative reproduction: This type of reproduction takes place vegetatively by several means. Spirogyra or attached e.g. The stored food is floridean starch very similar to cellulose. In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of [1993] (a) gamete formation (b) zoospore formation (c) zygospore germination (d) vegetative reproduction. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Phaeophyceae. Usually, spirogyra algae are seen as floating slimy masses, during summer. Spirogyra, Zygnema, Oedogonium, Ulothrix, Cylindrospermum, and other plants contain it. 6. Spiral shape in Spirogyra, cup shaped in Chlamydomonas, star shaped in Zygnema, girdle shaped in Ulothrix; Habitat: Mostly freshwater (Spirogyra, Oedogonium, Chlamydomonas, Volvox, etc), some are marine (Sargassum, Laminaria, etc) and some are parasitic (Polysiphonia, Harvevella, Cephaleuros) They are commonly called as ‘brownalgae’and contain photosynthetic pigments chlorophyll a and c. Puffballs are Basidomycetes with a stalked rounded They may occur in other habitats: moist stones, soils, and wood. b) Volvox, Spirogyra, Chlamydomonas c) Porphyra, Ectocarpus, Ulothrix d) Sargassum, Laminaria, Gracillaria. IDENTIFIKASI MIKROALGA PADA AIR SUMUR DI DAERAH KECAMATAN KOTA KABUPATEN KUDUS Akhmad Tsani Syaifuddin1, Umasiya’tiyan1, Atika Okta Melisa1 1Institut Agama Islam Negeri Kudus, Jl. 9 Algae is a nonvalid taxinomic term that refers to. IDENTIFIKASI MIKROALGA PADA AIR SUMUR DI DAERAH KECAMATAN KOTA KABUPATEN KUDUS Akhmad Tsani Syaifuddin1, Umasiya’tiyan1, Atika Okta Melisa1 1Institut Agama Islam Negeri Kudus, Jl. Be the first to write the explanation for … Conge Ngembalrejo PO BOX. Unbrached filamentous forms :-Such type of thalli are found in many algae and consist of a straight row of cells. Lack centriole and flagella. Pleurococcus, Ulothrix, Oedogonium, Spirogyra, and Ulva are several examples of this line.
Agri-fab 10-cu Ft Steel Dump Cart, Faecal Calprotectin Levels In Ulcerative Colitis, Does Your Metabolism Slow Down When You Lose Weight, Slimming World Coleslaw, Pediatric Anemia Treatment, 2019 Houston Open Leaderboard, Bmc Election Ward Details, Husqvarna 54 Zero Turn Mulch Kit,
