Economic importance of algae. The structural difference between Ulothrix and Chlamydomonas is that Ulothrix has a A. colonial body form, jelly-like material and cup shape chloroplast. Ulothrix zonata and Hydrurus foetidus are the common attached filamentous algae. Algae are chief producers in the marine ecosystem. They are cylindrical and quadrate. Importance of lichens as colonizers and indicators of environment. Ulothrix a genus of green algae in the form of unbranched, attached filaments consisting of one row of mononuclear cells with one parietal bandlike chloroplast with pyrenoids. var. Lithophyte species. View solution. They have central vacuoles. Important Features of Ulothrix: 1. Gum of Cycas is used as an antidote against snake venom and juice of young leaves is used to cure blood vomiting Chara (stonewort) What is a distinguishing feature of Oedogonium? Video Solution: In Ulothrix, the cell contains. Algae is the thalloid plant of the Plantae kingdom. 3. They are also known as microscopic plants. WikiProject Marine life. Essay # 1. I Q. Ulothrix Reproduction Mosses and Liverwort life cycle of all … The shape of chloroplast shows much variation; it is cup shaped, (Chlamydomonas), girdle shaped (Ulothrix), reticulate (Cladophora, oedogonium), stellate, spiral (Spirogyra) or discoid. Middle cells; Dome-shaped apical cell. Practice important Questions. Bacteria: structure - types of nutrition, reproduction and economic importance. Laboratory cultures have to be used for unequivocal determination. What is the common name of Ulothrix? C. Filamentous and unbranched. Fixators of CO 2: Algae are one of the major producers in an ecosystem.They are responsible for fixing more than 50% of the world's total CO 2.In oceans, since plants are absent, algae form the base of food chains, and support the whole . NEET Biology is the vey important paper in the medical entrance exam. Answer: germination of zygote. 6. Plants provide food to nearly all organisms, including humans. Thallus Structure. C. multicellular body form, holdfast and oval shape chloroplast. Ulothrix filaments in the guts of daphnids Average density and body length of daphnids decreased during the course of our study (Fig. Economic importance of Algae-. Ulothrix 3. . In blue- green algae such pieces of trichomes are called hormogonia. Talk:Ulothrix speciosa. Meaning of Algae: Although Linnaeus (1753) first introduced the name Algae, but by Algae he meant the Hepaticae. Volvox, Fucus.. Economic importance. 7.4 k. 5.5 k. Answer. 3. NEET Biology is the vey important paper in the medical entrance exam. All cereals, roots, pulses, vegetable crops, etc., we get from plants. Ulothrix is a genus of non-branching filamentous green algae, generally found in fresh and marine water. Caulerapa) and haplo-diplontic (eg. View solution. Ulothrix (division Chlorophyta) A genus of unbranched, filamentous, green algae, each cell of which contains a single chloroplast which forms an incomplete band around the middle of the cell. For each of the following research questions. Text Solution. (Other type of chioroplasts are c-shaped, collar-shaped or ring-shaped.) 1. . 3. True False . Freshwater species. We are directly or indirectly dependent on plants. Basal cell of Ulothrix is. Open Answer in App. Kuetzing) Species. The life-cycle of Ulothrix is : (a) haplontic (c) haplobiontic (b) diplontic (d) diplobiontic 3. 2. Spirogyra. (c): Ulothrix is a green filamentous alga, belonging to class chlorophyceae . Both are abundant in the moister marginal zones, Ulothrix especially in late winter and spring. Reproduction: Vegetative, asexual and sexual methods of reproduction are present in algae. C formation of gametes. B formation of spores. The remaining cells are green. - Ulothrix implexa. (1998) described a rich assemblage of bacteria and protists in the alluvial aquifers. state the type of study described by each of the following paragraphs. View solution. Ulothrix. Step by step video, text & image solution for " In Ulothrix, the cell contains " by Biology experts to help you in doubts & scoring excellent marks in Class 11 exams. The genus Spirogyra comprises more than 300 species and most of them are free floating algae. The most common method of vegetative reproduction is fragmentation. Algae as primary producers- algae provides the base or beginning of most aquatic animals or organisms because of their photosynthetic activities so it is also known as primary producers of organic matter. Reproduction How Algae Grow. Algae are autotrophs, and grow in a wide range of habitats. (iii) Uses as Larvicide - Chara gathers calcium over its surface and killed . Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the late. and Nitzschia spp., indicators of naturally high nitrogen concentrations, often occur at the spring heads. Iodine is obtained from. Ulothrix zonata is the main species of Ulothrix which is found in India (A) Ulothrix Filament (b) T.S. Here you will find NEET MCQ questions on the Class 11 Biology Chapter "Plant Kingdom" based on the NCERT textbook. Answer: B. Ques. Fusion of a large, non-motile female gamete (egg) and a small motile male gamete (sperm) is known as Oogamous. 49. The shape of chloroplast shows much variation; it is cup shaped, (Chlamydomonas), girdle shaped (Ulothrix), reticulate (Cladophora, oedogonium), stellate, spiral (Spirogyra) or discoid. The filaments are attached at their bases to rocks, etc., in marine or fresh water. Starch is photosynthetic food product, but rarely oil as in vaucheria. Sketch, label and describe Ulothrix filament. Anisogamous- dissimilar in size, e.g., Eudorina, Oogamous- one large (non-motile) female and smaller motile male, e.g., Volvox, Fucus. 6. Multiple Choice Questions on Algae - Algae can be found in a variety of environments, including oceans, rivers, and lakes, as well as ponds, brackish water, and even snow.Try our Multiple Choice Questions on Algae to see if you can get all the Multiple Choice Questions on Algae answers right for the questions below. Asexual reproduction in Spirogyra. Which of the algae is responsible for red colour of red sea. In Ulothrix, reduction division takes place at the time of. Jump to navigation Jump to search. The remaining are freshwater aquatics or semi-aquatics. During photosynthesis, algae produce at least half of the oxygen in Earth's atmosphere. " Ulothrix . The number of flagella produced by motile cells in. Used by exo-biologist and known as . 3 ). A gametophyte is essentially a spore that develops from mitosis rather. Codium, Ulva are edible members and are used as salad and vegetables. লিখিত জবাব. Habitat: they are commonly found floating in fresh water . A. Colonial and branched. Some algae , such as Trentepohlia, Rhodochytrium, grows on the surface of angiosperms leaves, called epiphyllophytes. Show me the items on the check sheet (page 10-2) and have me initial that page to indicate that you have shown them to me. This module discussed the importance of selecting a suitable study design and methods for data analysis based on a research question. The thallus breaks into pieces and each piece is capable of regeneration. (Rated Stub-class, Low-importance) Marine life portal. Describe the various methods of asexual reproduction in Ulothrix. Chapter: 5 Study of Life History of Sargassum 2 Marks Questions: 1. They are attached to a solid substratum by means of a colourless lowermost cell called holdfast. Therefore, this is the incorrect option. Agar-Agar is derived from. Ulothrix, Chlamydomonas, Spirogyra, Chara, Volvox, Chlorella) diplontic (eg. The seaweeds and pond scums are the most common forms of algae. Plant body : Filamentous, unbranched filaments having 3 types of cells. Related questions. Students get through the TN Board 11th Bio Botany Important Questions Chapter 2 Plant Kingdom which is useful for their exam preparation.. TN State Board 11th Bio Botany Important Questions Chapter 2 Plant Kingdom. Which are the most primitive group of algae. 4 Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall of. Chlorella lead an endozoic life in hydra and sponges whereas Cladophora crispata grow on the shells of molluscs. 5. Sexual - a fusion of gametes, flagellated and similar size (Ulothrix), non-flagellated and similar (spirogyra)- isogamous. They can exist singly or in colonies like the Volvox or may be unicellular like Chlamydomonas or may even have a filamentous structure like Spirogyra and Ulothrix. The only Algae are good source of carbohydrates, fats, proteins, and vitamins A, B, C, and E as well as the minerals like iron, potassium, magnesium etc. . Ulothrix Fucus Porphyra Spirogyra Algal Biofuel Recent developments in science and technology have enabled algae to be used as a source of fuel. Tabulate the economic importance of algae. Therefore they are used as source of food. Multiple Choice Questions are an important part of exams for Grade 11 Biology and if practiced properly can help you to . Green Algae occur in both aquatic and semi-aquatic habitats. The chloroplast contains one (U. rorida) to many (U. zonata) pyrenoids. Algae reproduce by vegetative, asexual and sexual methods. Which of the following is the most advanced group of algae. B. Solitary and branched. What is Dulse, and what was its importance in the 1800's? Plants which are not differentiated into roots, stem and leaves are grouped under. Most of the algae inhabit the aquatic environment, either freshwater or marine habitats. (6) Ulothrix zona (d) none of abov. Two new species are being described: one of them is structurally quite similar to Ulothrix speciosa (syn.

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