what is the difference between algae and blue green algae?
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Blue-green algae or cyanobacteria possess characteristics of algae – they make chlorophyll-a and use sunlight as an energy source for growth, but have bacterial cells (prokaryotic) rather than algal cells (eukaryotic). ... Some freshwater cyanobacterial blooms can produce highly potent toxins known as cyanotoxins.
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There is three main Algae classification: Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. Examples are Chlamydomonas, Spirogyra, and Chara. Phaeophyceae – Also called as brown algae, they are predominantly marine.
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Algae could be both unicellular and multi-cellular, whereas seaweeds are necessarily multi-cellular. All the seaweed species are autotrophic, whereas some algal species rely on other external food materials. ... Marine algae can distribute over shallow as well as deep waters, while seaweeds mostly inhabit shallow waters.
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Cyanobacteria is also known as blue-green algae. They differ from other bacteria in that cyanobacteria possess chlorophyll-a, while most bacteria do not contain chlorophyll. Chlorophyll-a gives them their characteristic blue-green color. Comparatively smaller.
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What is the difference between chlorophyll a and chlorophyll b? Chlorophyll a reflects yellow-green light, chlorophyll b reflects blue-green light.
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Like other algae, green algae serve as an important food source for herbivorous marine life, such as fish, crustaceans, and gastropods, including sea snails. Humans use green algae as food, too. ... The pigment beta carotene, found in green algae, is used as a food coloring.
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Photosynthetic algae known as phytoplankton are found in both marine and freshwater environments. Most marine phytoplankton are composed of diatoms and dinoflagellates. Most freshwater phytoplankton are composed of green algae and cyanobacteria.
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The main difference between bacteria and cyanobacteria is that the bacteria are mainly heterotrophs while the cyanobacteria are autotrophs. Furthermore, bacteria do not contain chlorophyll while cyanobacteria contain chlorophyll-a.
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Answer: The presence or absence of pigments is the main basis of classification of algae. Chlorophyceae: Chlorophyll a and b are present in them and impart green colour. Chlorophyceae are also called 'blue-green algae'. Phaeophyceae: Chlorophyll a and c and fuxoxanthin are present.
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['Algae are unicellular, filamentous, or multicellular (thallic). ... ', 'Most algae live in aquatic environments. ... ', 'Algae are eukaryotic; most are photoautotrophs. ... ', 'The thallus of multicellular algae usually consists of a stipe, a holdfast, and blades. ... ', 'Algae reproduce asexually by cell division and fragmentation.']
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When ingested, these toxins can cause illness and even death. Humans and animals swimming in (or drinking water from) bodies of water with blue-green algae can present with symptoms ranging from liver damage to paralysis. ... These actions support the growth of plants and the animals that eat them.
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What is the basis of classification of algae? The presence or absence of pigments is the main basis of classification of algae. Chlorophyceae: Chlorophyll a and b are present in them and impart the green colour. Chlorophyceae are also called as 'blue-green algae'.
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The major difference between algae and protozoa is that algae are able to make their own food, as plants do, while protozoa ingest other organisms or organic molecules, as animals do.
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Green algae have chloroplasts that contain chlorophyll a and b, giving them a bright green color, as well as the accessory pigments beta carotene (red-orange) and xanthophylls (yellow) in stacked thylakoids. The cell walls of green algae usually contain cellulose, and they store carbohydrate in the form of starch.
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Spirulina and kelp were two key finds. Spirulina is a small, single-celled microorganism that's rich in chlorophyll, a plant pigment that gives so many lakes and ponds their dark blue-green color. Kelp, in contrast, is a brown algae that grows only in the sea.
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["Red Algae. a. Group containing most of the world's seaweeds. b. ... ", 'Brown Algae. a. The algae that live in colder climates are mostly brown algae. b. ... ', 'Green Algae. a. They are green because the chlorophyll is the main pigment they have. b. ... ', 'Diatoms. a. Singlecellular. b. ... ', 'Dinoflagellates. a. Most are single cell. b. ... ', 'Euglenoids.']
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'blue'). Cyanobacteria, which are prokaryotes, are also called "blue-green algae", though some modern botanists restrict the term algae to eukaryotes. Cyanobacteria appear to have originated in freshwater or a terrestrial environment. Unlike heterotrophic prokaryotes, cyanobacteria have internal membranes.