1. Share 0. They range from minute discs to thalli,100 meters or more in length. List 3 criteria used to define a virus. 2 See answers Brainly User Brainly User Algae are eukaryotic organisms that have no roots, stems, or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. 1-a. ADVERTISEMENTS: In this article we will discuss about the Characters and Economic Importance of Algae. There are four types of life cycle in algae such as; 1. In most groups of algae it appears that the plastid has been derived by at least two serial endosymbioses. General characteristics of rhodophycae-Algae are non-vascular, aquatic forms which possesses accessory spores for asexual multiplication and non-jacketed gametangial for sexual reproduction. Sargasso sea is named after an algae Sargassum which is a . Spirulina algae (Arthrospira platensis) is a blue-green micro-algae with a spiral shape that grows spontaneously in few areas of the world, such as Mexico or Africa, where the water of the lakes has a high alkalinity, the temperatures remain constant between 30C degrees and 40C degrees and there is a high concentration of mineral salts. ADVERTISEMENTS: In this article we will discuss about:- 1. Algae also form a component of periphyton, which not only provides natural food for fish and other aquatic animals but is actively promoted by fishers and aquaculturists as a means of increasing productivity. Occurrence 5. b) Brown algae. 10.1: General Characteristics of Viruses Last updated; Save as PDF Page ID 3232; Contributed by Gary Kaiser; Professor (Microbiology) at Community College of Baltimore Country (Cantonsville) Summary; Contributors and Attributions; Learning Objectives. List the general characters of algae. 1 GENERAL CHARACTERS OF ALGAE B.Sc. Algae - Algae - Classification of algae: The classification of algae into taxonomic groups is based upon the same rules that are used for the classification of land plants, but the organization of groups of algae above the order level has changed substantially since 1960. The study of algae is known as phycology (phycos = seaweed). c) Red algae. Algae Classification. Multiple Choice Quiz on Plant Kingdom; Multiple Choice Quiz on Algae; Multiple Choice Questions on Bryophytes; Multiple Choice Quiz on Pteridophytes; Multiple Choice Questions on Gymnosperms ; Answers. d) Blue green algae. Clear. Microalgae or microphytes are microscopic algae, typically found in freshwater and marine systems, living in both the water column and sediment. For examples, water, air, dead and decaying organic matter, living organisms. 4. Just as humans move from one place to another using our legs, algae move from one place to another by using “flagella”. Sort by Popular; Sort by Recent; Sort by Oldest; Filter jobs Roles. 4-c. 5-b. 10-b. What are the general characters of algae Ask for details ; Follow Report by Zeba64 07.10.2019 Log in to add a comment Sort by Popular. Algae exist in a variety of shapes and forms—single-celled algae may be spherical, rod-shaped, or spindle-shaped, while multicellular algae may appear as colonies, filaments or tubes. Habitat: mostly aquatic, either free living or parasitic or commensal; Grade of organization: protoplasmic grade of organization. Algae are free-floating organisms or aquatic or remain attached to others. answered Feb 2 by KumariJuly (53.5k points) selected Feb 5 by Ritik01 . English: Title: The algae of the Arctic Sea, a survey of the species, together with an exposition of the general characters and the development of the flora Identifier: cu31924000640817 (find matches) Year: 1883 Authors: Kjellman, F. R. (Frans Reinhold), 1846-1907 Subjects: Algae Publisher: Stockholm, Norstedt Contributing Library: Cornell University Library They can be grown in moist stones, soil, wood, etc. The taxonomy of blue-green algae is in transition, this means it can being dealt in botanical nomenclature code or bacteriological nomenclature code. This topic is not dealt with in this section, since periphyton is not solely comprised of algae and certainly cannot be regarded as macroalgae. Thallus Organisation 6. *Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects. Algae have simple, unicellular non-jacketed sex organs and have no embryo development. But they do not have embryo forming stage. Depending on the species, their sizes can range from a few micrometers (μm) to a few hundred micrometers. Algae are simple, chlorophyll bearing and photosynthetic non vascular plants whose body is a simple thallus without differentiation into roots, stems and leaves. General Characters Of Algae; Showing results 6329 for general characters of algae Jobs. General characteristics of Algae: 1. Sequential changes of the different pages through which an organism completes the life process, starting from zygote to the zygote of the next generation is called the life cycle. Haplontic Life Cycle. The major groups of algae are therefore related to the type of protist host and the type of plastid, and these are described. Some fungi are unicellular. General Characteristics of phylum Protozoa. They are mostly aquatic, though a few are terrestrial. 7-b. Algae can be multicellular or unicellular. Kingdom: Protista. In general, the brown algae flourish in colder ocean waters and on rocky coasts, where they grow attached in intertidal or littoral zone e. the members of Fucaceae and Laminariales. Cyanobacteria are also referred to as blue-green algae despite the fact of being distinct from algae. Characters of Algae 1. Aquatic algae grow in fresh water or marine water. The term algae was applied to these organisms on the basis of their photosynthetic activities before their structural relationship to bacteria was uncovered with the electron microscope; they are, more properly referred to as blue-green bacteria or cyanobacteria. Many lichen partners include one photobiont and one mycobiont which is not universal and there are lichens with more than one photobiont partner. Algae can be multicellular or unicellular. 4. Characters of Algae. General characteristics of algae, Classification of algae based on habitat, Thallus diversity in algae, Chloroplast shape variations in algae, Pigmentation in algae, Reproduction in algae, Life cycle in algae . They are unicellular species which exist individually, or in chains or groups. All Locations; India; International; Monthly Salary. Fungi are found in all types of environments where organic materials are available. ← Prev Question Next Question → 0 votes . Habit and Habitat . Life cycle of Algae. According to presence of pigments algae can be divided into- chlorophyceae (green … Share with your friends . 0 votes . Algae: general characters and classification 1. The contents of this documents are Dichotomous Key to Freshwater Algae, Groups of Cyanobacteria & Algae, Dinoflagellates, Euglenoids, Brown, Golden brown, and Yellow brown Algae … Occurrence. 3. Introduction to Algae 2. the living world; class-11; Share It On Facebook Twitter Email. 5. Learn more: Lecture Note in Algae General Characteristics. Only a few algae occur in moist terrestrial habitats like tree trunks, wet rocks, moist soil, etc. 2. Algae: General Characters PPT (General Characteristics of Algae PPT) What are algae? Definitions of Algae 3. Hyphae are aseptate, coenocytic, uni-, di- or multinucleate. General Topics; Difference Between ; Quizzes & Multiple Choice ; Plant Science Videos; Main characteristics of Algae. Part I BOTANY (HONOURS) PAPER – I GROUP - A: CRYPTOGAMS Prepared By: Dr. Jyoti Pandey, Assistant Professor what are the general characters of algae? Evolution of Sex. There is three main Algae classification: Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. 2. General Characteristics of Algae. State 2 living and 2 nonliving characteristics of viruses. The term thallus is used for a plant body that is not differentiated into root stem and leaves and lacks vascular system. Some of the algae are also found as terrestrial, subterranean or epiphytic forms. In this life cycle plants are haploid. 2. The cyanobacteria have been included in Volume 3 of Bergey’s Manual. They occur both in marine and fresh water habitats. Characters 4. The non-fungal part is known as photobiont that contains chlorophyll. Following are the general charcterstics:- #Algae are eukaryotic organisms that have no roots, stems, or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. It includes in the kingdom plantae. 1 Answer. 8-d. 9-b. The thallus of the fungi is long and tubular with filamentous branches called as hyphae. 3. 6-b. Show results from. 14 views. In addition, it has two important chapters covering Algae in Extreme Environments and Life Histories and Growth Forms in Green Algae. Plant body is thallus (a form without any differentiation […] Algae include simple unicellular or multicellular plants characterised by the presence of a green pigment called chlorophyll. Introduction to Algae: The term algae (Latin — seaweeds) was first introduced by Linnaeus in 1753, meaning the Hepaticeae. Give the general characters of algae with two examples. Q: The osmolarity of physiological saline solution is 0.30 osmol/L. List the general characters of algae. a) Green algae. Concepts of Botany Algae (PDF 21P) This note contains explanation of algae, structure of alage and its classification. Red algae are known as Rhodophycae. They can be defined as the small autotrophs that fail to show any cellular differentiaton & their sex organs are unicellular & if multicellular all cells are fertile 2. A single endosymbiosis appears to have occurred in the green algae, the red algae and the glaucocystophytes. #Most algae are photoautotrophic and carry on photosynthesis. Best answer. The thallus of algae shows great degree of variation in size and form. 2-c. 3-a. asked Feb 2 in Biology by Ritik01 (48.1k points) recategorized Feb 2 by Ritik01. Algae are usually aquatic, either marine or fresh water. They are known as acellular or non-cellular organism. General characters of Fungi. Learn more. They are usually aquatic. The algal cell wall is made up of cellulose. Examples are Chlamydomonas, Spirogyra, and Chara; Phaeophyceae – Also called as brown algae, they are predominantly marine. General characters of Algae 1. A protozoan body consists of only mass of protoplasm, so they are called acellular or non-cellular animals. The algae comprise of a large heterogeneous assemblage of […] The first part, Biology of Algae, contains 10 chapters dealing with the general characteristics, classification and description of different groups such as Blue Green Algae, Green Algae, Brown Algae, Red Algae, Diatoms, Xanthophyceae, Dinophyceae, etc. Appears to have occurred in the green algae, structure of alage and its classification are photoautotrophic and on. In green algae, structure of alage and its classification therefore related to the type of plastid, Chara... 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