general characters of algae

ADVERTISEMENTS: In this article we will discuss about the Characters and Economic Importance of Algae. asked Feb 2 in Biology by Ritik01 (48.1k points) recategorized Feb 2 by Ritik01. Algae include simple unicellular or multicellular plants characterised by the presence of a green pigment called chlorophyll. They are known as acellular or non-cellular organism. General characters of Fungi. General characteristics of rhodophycae-Algae are non-vascular, aquatic forms which possesses accessory spores for asexual multiplication and non-jacketed gametangial for sexual reproduction. There are four types of life cycle in algae such as; 1. Algae are free-floating organisms or aquatic or remain attached to others. They can be grown in moist stones, soil, wood, etc. Examples are Chlamydomonas, Spirogyra, and Chara; Phaeophyceae – Also called as brown algae, they are predominantly marine. Algae: general characters and classification 1. 6-b. Q: The osmolarity of physiological saline solution is 0.30 osmol/L. They are mostly aquatic, though a few are terrestrial. Fungi are found in all types of environments where organic materials are available. Algae are simple, chlorophyll bearing and photosynthetic non vascular plants whose body is a simple thallus without differentiation into roots, stems and leaves. What are the general characters of algae Ask for details ; Follow Report by Zeba64 07.10.2019 Log in to add a comment For examples, water, air, dead and decaying organic matter, living organisms. Algae are usually aquatic, either marine or fresh water. 2-c. 3-a. The contents of this documents are Dichotomous Key to Freshwater Algae, Groups of Cyanobacteria & Algae, Dinoflagellates, Euglenoids, Brown, Golden brown, and Yellow brown Algae … Algae can be multicellular or unicellular. Habit and Habitat . Definitions of Algae 3. Haplontic Life Cycle. Kingdom: Protista. This topic is not dealt with in this section, since periphyton is not solely comprised of algae and certainly cannot be regarded as macroalgae. Best answer. The non-fungal part is known as photobiont that contains chlorophyll. Plant body is thallus (a form without any differentiation […] 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. Algae can be multicellular or unicellular. The algal cell wall is made up of cellulose. 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. The cyanobacteria have been included in Volume 3 of Bergey’s Manual. General characters of Algae 1. 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. 2. Give the general characters of algae with two examples. d) Blue green algae. Show results from. Algae: General Characters PPT (General Characteristics of Algae PPT) What are algae? Hyphae are aseptate, coenocytic, uni-, di- or multinucleate. 2. Depending on the species, their sizes can range from a few micrometers (μm) to a few hundred micrometers. answered Feb 2 by KumariJuly (53.5k points) selected Feb 5 by Ritik01 . 4. 8-d. 9-b. 1-a. A single endosymbiosis appears to have occurred in the green algae, the red algae and the glaucocystophytes. 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. 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. 7-b. List 3 criteria used to define a virus. General Characters Of Algae; Showing results 6329 for general characters of algae Jobs. Thallus Organisation 6. Characters of Algae 1. Only a few algae occur in moist terrestrial habitats like tree trunks, wet rocks, moist soil, etc. Learn more. Sargasso sea is named after an algae Sargassum which is a . 3. 0 votes . They are unicellular species which exist individually, or in chains or groups. Algae Classification. Habitat: mostly aquatic, either free living or parasitic or commensal; Grade of organization: protoplasmic grade of organization. The term thallus is used for a plant body that is not differentiated into root stem and leaves and lacks vascular system. 3. Characters of Algae. 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. #Most algae are photoautotrophic and carry on photosynthesis. Just as humans move from one place to another using our legs, algae move from one place to another by using “flagella”. 5. List the general characters of algae. General Characteristics of phylum Protozoa. The thallus of algae shows great degree of variation in size and form. All Locations; India; International; Monthly Salary. 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. ADVERTISEMENTS: In this article we will discuss about:- 1. Share 0. Algae have simple, unicellular non-jacketed sex organs and have no embryo development. They range from minute discs to thalli,100 meters or more in length. Occurrence. 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. Cyanobacteria are also referred to as blue-green algae despite the fact of being distinct from algae. 1 GENERAL CHARACTERS OF ALGAE B.Sc. 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. Characters 4. 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. Some fungi are unicellular. In this life cycle plants are haploid. State 2 living and 2 nonliving characteristics of viruses. Clear. Red algae are known as Rhodophycae. 2. According to presence of pigments algae can be divided into- chlorophyceae (green … List the general characters of algae. ← Prev Question Next Question → 0 votes . Occurrence 5. In most groups of algae it appears that the plastid has been derived by at least two serial endosymbioses. It includes in the kingdom plantae. Introduction to Algae 2. *Response times vary by subject and question complexity. The thallus of the fungi is long and tubular with filamentous branches called as hyphae. what are the general characters of algae? 10-b. Many lichen partners include one photobiont and one mycobiont which is not universal and there are lichens with more than one photobiont partner. 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. 4. They occur both in marine and fresh water habitats. Sort by Popular. c) Red algae. There is three main Algae classification: Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. Learn more: Lecture Note in Algae General Characteristics. Evolution of Sex. 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 . Median response time is 34 minutes and may be longer for new subjects. Introduction to Algae: The term algae (Latin — seaweeds) was first introduced by Linnaeus in 1753, meaning the Hepaticeae. the living world; class-11; Share It On Facebook Twitter Email. 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. 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. Life cycle of Algae. A protozoan body consists of only mass of protoplasm, so they are called acellular or non-cellular animals. 4-c. 5-b. General characteristics of Algae: 1. The taxonomy of blue-green algae is in transition, this means it can being dealt in botanical nomenclature code or bacteriological nomenclature code. The study of algae is known as phycology (phycos = seaweed). b) Brown algae. Some of the algae are also found as terrestrial, subterranean or epiphytic forms. But they do not have embryo forming stage. In addition, it has two important chapters covering Algae in Extreme Environments and Life Histories and Growth Forms in Green Algae. 14 views. Share with your friends . General Characteristics of Algae. The major groups of algae are therefore related to the type of protist host and the type of plastid, and these are described. Microalgae or microphytes are microscopic algae, typically found in freshwater and marine systems, living in both the water column and sediment. 1. 1 Answer. They are usually aquatic. The algae comprise of a large heterogeneous assemblage of […] Sort by Popular; Sort by Recent; Sort by Oldest; Filter jobs Roles. Part I BOTANY (HONOURS) PAPER – I GROUP - A: CRYPTOGAMS Prepared By: Dr. Jyoti Pandey, Assistant Professor Concepts of Botany Algae (PDF 21P) This note contains explanation of algae, structure of alage and its classification. a) Green algae. Aquatic algae grow in fresh water or marine water. 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 General Topics; Difference Between ; Quizzes & Multiple Choice ; Plant Science Videos; Main characteristics of Algae. 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