1. tantly to blue-green algae and perhaps to Bacillaceae. What is the distribution of phylum chlorophyta? Are phylum chlorophyta prokaryotic or eukaryotic organisms & why? The prokaryotes are organised in the ‘three domain system’ and include bacteria and blue-green algae. Prokaryotic cells are unicellular cells. 1 5. do they have a nucleus? They have a variety of internal membrane-bound structures, called organelles, and a cytoskeleton composed of microtubules, microfilaments, and intermediate filaments, which play an important role in defining the cell's organization and shape. Prokaryote Life: Cyanobacteria A Quick Biology Lesson. The eukaryotic cell is a chimera Figure 1. Hence, they are also called as blue green algae. Get your answers by asking now. Cyanobacteria is a prokaryotic algae, while red algae (rhodophyta), green algae (chlorophyta), & brown algae (chromophyta) are eukaryotic For chloroplasts, similarities with prokaryotes are found for photosynthetic membranes (2, 3), ribosomes (4), and path-ways of CO2 fixation and … Bacteria and blue-green algae are both primitive prokaryotes that live on earth now, as well as long time ago. what is the structure of a seaweed. Cyanophyceae or blue green algae are prokaryotic in nature whereas all other classes of algae are eukaryotic. Eukaryotic cells are multicellular cells. Still have questions? To answer this question, there is some background you need to know first. A single cell may contain one or more chloroplasts. Kingdom Protista. bactarial cell (Prokaryotic) blue green algae (Eukaryotic) muscle cell (Eukaryotic) blood cell (Eukaryotic) amoeba (Eukaryotic) virus (Prokaryotic) Hope that helps! What is the habitat that phylum chlorophyta live in? are seaweeds complex? yes. Cyanobacteria, and bacteria in general, are prokaryotic life forms. Some do not consider the prokaryotes as true algae because they have a different structure, but most include these in the family of algae. 1). These organisms can be either autotrophic or heterotrophic. Though they have genetic material, it’s not enclosed in a nucleus. The prokaryotic cells consist of bacteria, blue-green algae, mycoplasma and PPLO (Pleuro Pneumonia Like Organisms). 2. complex, but not as complex as terrestrial (land) plants. They have a well organized nucleus enclosed within nuclear membrane. 1. … Prokaryotic cell- Bacteria - example The bacteria are microscopic unicellular prokaryotes. Prokaryotic cell includes archaea, blue-green algae and bacteria while Eukaryotic cell includes animals, plants, fungi and protists. They are ubiquitous (present everywhere) in nature. Three major eukaryotic photosynthetic groups have descended from a common prokaryotic ancestor, through an endosymbiotic event. Prokaryotic cells differ from eukaryotic cells in that they lack a membrane- bound nucleus and organelles. However, in chloroplast, only prokaryotic type genes are working properly, since chloroplast is organellum derived from ancient cyanobacteria (blue-green algae). Floaters in the plankton of rivers, lakes, reservoirs, and creeks. 1 decade ago. Prokaryotic Cells. Hence, the algae do not belong to the kingdom of Plantae. Eukaryotic cells are typically much larger than those of prokaryotes, having a volume of around 10,000 times greater than the prokaryotic cell. This basically means that their cells don’t have organelles (tiny structures inside cells that carry out specific functions) and do not have distinct nuclei—their genetic material mixes in with the rest of the cell. It is believed that 1ml of the water we drink contains close to 80,000 bacteria. The kingdom Protista contains eukaryotes that cannot be assigned with certainty to other kingdoms . Only bacteria and cyanobacteria (also called blue-green algae) have prokaryotic cells. They do not have nuclear membrane. DNA fibrils are free in nucleoplasm and are not associated with histones. It means that genetic material is not bounded by a proper membrane; They are smaller in size. Moreover, the photosynthetic pigments are arranged into chloroplasts. Cyanobacteria can photosynthesize which means they have the ability to produce their own food by using sunlight. All existing life organisms came from one common ancestor. In prokaryotic e.g., Cyanophyceae—nucleus is not organized as nuclear membrane is absent. Asexual reproduction of algae includes the production of mobile spores and division by mitosis. Theseresults argue in favor ofanendosymbiontorigin of thechloroplast. Although commonly referred to as blue-green algae, cyanobacteria are not actually algae. The term "blue-green algae" was coined long ago before we had the ability to microscopically distinguish between prokaryotes & eukaryotes. Cell division by mitosis and meiosis is not found. An early filamentous prokaryote (Campbell, 1992) Stromatolites are formed by unicellular organisms called Cyanobacteria (formally known as blue-green algae).. thallus. 1, 2): Cell Wall of Eukaryotic Algal Cell: The cell is bounded by a thin, cellulose cell wall. Their size vary from 0.1µm to 5.0µm. Anonymous. Cyanobacteria are also known as blue-green algae. Therefore, these algae possess primary plastid, that is, derived directly from the prokaryotic ancestor. E. P. E. E. E. P. in that order... 0 6. This is a diagram of a prokaryote cell and it shows that they are not very complex cells. is there a large range of seaweeds. The genetic material of green algae occurs in the nucleus. The key difference between blue green algae and green algae is that blue green algae are prokaryotic organisms that belong to Kingdom Monera while green algae are eukaryotic organisms that belong to Kingdom Protista.. Photosynthesis is the process shown by photoautotrophs. In Prokaryotic cells true nucleus is absent. Anonymous. In prokaryotes, asexual division occurs basically binary fission. Eukaryotic algae are sexually dimorphic; Therefore, male and female gametes are produced by different individuals. They do not have membrane-bound organelles and true organelles while green algae is a eukaryotic organism which has a true nucleus and membrane-bound organelles. lack true leaves, stems, and roots. 2) and, second, in the newly evolved eukaryotic algal lineages originating from either primary (green and red algae) or secondary endosymbiosis (brown algae). Cyanobacteria as compared to green algae are potentially dangerous to the ecological environment of the aquatic organisms. All types of blue green algae and bacteria are included in this kingdom. Eukaryotic: As a constrast, organisms other than bacteria possessing a well-defined nucleus are eukaryotes (eu = true; karyon = nucleus).There are other differences between prokaryotes and eukaryotes which are given below in Table. a. Desiccation tolerance must have evolved at least two times independently, first, in the prokaryotic algae (=cyanobacteria, Chap. Both of them contains DNA molecules, they just differ in location. Eukaryotic; they have a nucleus with a nuclear membrane, a golgi apparatus and an endoplasmic reticulum . Organism Blue green algae are prokaryotic cells as they do not have membrane bound organelles and nucleus. Figure 10.2b shows the cell structure of a prokaryote, a bacterium, one of two groups of the prokaryotic life. In eukaryotic cell, most of the DNA is in the nucleus. Ask … Following a conception of subdivision of living organisms into five kingdoms (Monera, Protoctista, Fungi, Animalia, and Plantae), the prokaryotic algae (blue-green algae, Cyanobacteria, Cyanoprokaryota) are placed in the Monera (Eubacteria) and the eukaryotic algae in the Protoctista. seaweeds-prokaryotic or eukaryotic? But, we now know they are actually a type of bacteria, and thus, prokaryotes. Cyanobacteria form the origin of plastids (for reviews see McFadden, 2001; Keeling, 2004; Palmer, 2003). In eukaryotic algae, sexual reproduction occurs through the union of gametes. The chromatin bodies remain scattered inside the cytoplasm. The kingdom Protista is an artificial grouping and classification does not represent evolutionary relationships. Since algae are eukaryotic organisms, they contain membrane-bound organelles in their cells. Thus, photosynthesis has developed in a wide variety of organisms: red and green algae, green plants through primary endosymbiosis, brown algae and many other organisms through secondary or tertiary endosymbiosis. Chloroplasts of red algae especially resemble cyanobacteria. Cyanobacteria or blue-green algae does not have chloroplast in their cells while green algae do have chloroplast in their cells because they are eukaryotic organisms. The structure of a eukaryote (a typical plant cell) is shown in Figure 10.2a. Monerans include bacteria and cyanobacteria (once known as blue-green algae). These are unicellular, eukaryotic organisms with a well-defined nucleus enclosed in a nuclear membrane. Because the cyanobacteria (the blue-green algae) have very large cells and a green color, they were assumed to be algae. Many authors even include the prokaryotic cyanobacteria into the algae, because they exhibit a life-style rather similar to their eukaryotic counterparts and often share the same habitat with eukaryotic algae. Source(s): Currently a Biology Student. According to the morphological point of view, prokaryotic cells are the most primitive cells. Differentiate the prokaryotic cell from eukaryotic cell. Several clades exist that still have some extant members whose plastids have numerous prokaryotic characters. In prokaryotic cell, it is concentrated in nucleoid region. what is the entire body of a seaweed plant? Green algae can be unicellular, multicellular or living in colonies. 0 5. Evidence suggests that various intracellular eukaryotic organelles evolved from endosymbiotic prokaryotes (1). They have cell organelles like mitochondria, chloroplast, lysosomes, peroxisomes, Golgi bodies, etc. It is simple, motile, unicellular, fresh water alga. The huge diversity of life species was posible due to the cell’s adaptation. 1 decade ago. PROKARYOTIC CELLS. Cyanobacteria are prokaryotic organisms where as green algae are eukaryotic organisms. As mentioned above, algae are eukaryotic organisms. Eukaryotic cells are present in all living organisms (both unicellular and multicellular organisms) except bacteria and blue green algae. Blue-Green algae. Diagram of the structure of a eukaryotic animal cell. It is the process that synthesizes carbohydrates (foods) by capturing energy from sunlight. cyanobacteria: photosynthetic prokaryotic microorganisms, of phylum Cyanobacteria, once known as blue-green algae; aerobic: living or occurring only in the presence of oxygen; endomembrane: all the membraneous components inside a eukaryotic cell, including the nuclear envelope, endoplastic reticulum, and Golgi apparatus; Origins of Eukaryotes. The slopes and elevations of the lines found for green algae (b = −0.219, a = −0.103, Fig. 2. They do not have a definite nucleus which includes bacteria and cyanobacteria (blue-green algae). 3). 1, Table I) and for cyanobacteria (b = −0.202, a = −0.127, Fig. Ultrastructure of Eukaryotic Algal Cell: Chlamydomonas, a member of green algae (chlorophyceae) is found almost in all places. Click to see full answer Thereof, is the cheek cell a eukaryote or prokaryote? Mostly fresh waters. This article specifically refers to the features of bacteria. Bacteria have a cell membrane and a cell wall. Prokaryotes live in many environments including extreme habitats such as hydrothermal vents, hot springs, swamps, wetlands, and the guts of animals. Blue-green cyanobacteria or algae are a type of microalgae that do not belong to eukaryotic algae. Generally, Humans, Animals, and plants are considered in this category as eukaryotic organisms. Its ultrastructure can be divided into following parts (Fig. These are prokaryotic cells without well-defined nucleus or cell organelles. 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