The following points highlight the eleven main classes of algae. The classes are: 1. Chlorophyceae 2. Xanthophyceae 3. Chrysophyceae 4. Bacillariophyceae 5. Cryptophyceae 6. Dinophyceae 7. Chloromonadineae 8. Euglenineae 9. Phaeophyceae 10. Rhodophyceae 11. Cyanophyceae or Myxophyceae.
Chlorophyceae (Green Algae): Unicellular, colonial or multicellular green plants, generally with simple structure, principal pigments are chlorophyll a and b, carotenes and xanthophyll’s as in higher plants, contained in plastids. Food storage products are mostly starch and sometimes fat frequently aggregates around the pyrenoids.
The classes are: 1. Chlorophyceae 2. Xanthophyceae 3. Chrysophyceae 4. Bacillariophyceae 5. Cryptophyceae 6. Dinophyceae 7. Chloromonadineae 8. Euglenineae 9. Phaeophyceae 10. Rhodophyceae 11.
Division-level classification, as with kingdom-level classification, is tenuous for algae. For example, some phycologists place the classes Bacillariophyceae, Phaeophyceae, and Xanthophyceae in the division Chromophyta, whereas others place each class in separate divisions: Bacillariophyta, Phaeophyta, and Xanthophyta.
There is three main Algae classification:Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. ... Phaeophyceae – Also called as brown algae, they are predominantly marine. ... Rhodophyceae – They are the red algae because of the presence of the red pigment, r-phycoerythrin.
The different divisions include:Euglenophyta (Euglenoids)Chrysophyta (Golden-brown algae and Diatoms)Pyrrophyta (Fire algae)Chlorophyta (Green algae)Rhodophyta (Red algae)Paeophyta (Brown algae)Xanthophyta (Yellow-green algae)
Divisions of Unicellular AlgaeDivision Chlorophyta. Algae of the division Chlorophyta possess green chlorophyll pigments and carotenoid pigments. ... Division Charophyta. Members of the division Charophyta are stoneworts. ... Division Euglenophyta. ... Division Chrysophyta. ... Division Pyrrophyta.
Algae classPhotosynthetic pigmentsChlorophyceae (Green algae)They are composed of pigments chlorophyll a and bPhaeophyceae (Brown algae)They have composed of pigments chlorophyll a, c, β- carotene, xanthophyllRhodophyceae (Red algae)They are composed of pigment r-phycoerythrin and r-phycocyanin
He classified algae into 11 classes namely Chlorophyceae, Xanthophyceae, Chryso-phyceae, Bacillariophyceae, Cryptophyceae, Dinophyceae, Chloromonadineae uglenophyceae, Phaeophyceae, Rhodophy-ceae, Cyanophyceae (Table 2.2).
Algae are classified into three classes. They are Chlorophyceae, Phaeophyceae and Rhodophyceae.
Terms in this set (6)Diatoms. Found in fresh water. ... Dinoflagellates. Means "spinning flagellates", have two flagella. ... Euglenoids. Protists that have characteristics of both plants and animals. ... Red Algae. Most are many celled, sometimes called seaweeds. ... Green Algae. ... Brown Algae.
The seven levels of classification are domain, kingdom, phylum, class, order, family, genus and species.
The 3 main groups of algae differ in a variety of ways: Different chlorophylls.
Simple unicellular, colonial or multicellular bodies lacking nuclear, mitochondrial and chloroplast double membranes, pigments not in organized bodies as in other cases, principal pigments are chlorophyll-a, β-carotene, xanthophyll’s and phycobilins, c-phycoerythrin and c-phycocyanin, reserve food in the form of cyanophycean or myxophycean starch, cell wall composed of pectin or cellulose, most forms are embedded in mucilaginous or gelatinous sheaths, no motile cell has been observed at any stage, reproduction of the bacterial type, ‘false’ branching and special types of cells called ‘heterocyst’ are characteristic features in many, most diverse in distribution, from pole to pole, almost everywhere, ubiquitous.
Euglenineae 9. Phaeophyceae 10. Rhodophyceae 11. Cyanophyceae or Myxophyceae. Class # 1. Chlorophyceae (Green Algae): Unicellular, colonial or multicellular green plants, generally with simple structure, principal pigments are chlorophyll a and b, carotenes and xanthophyll’s as in higher plants, contained in plastids.
Euglenineae: Simple unicellular or colonial motile organisms, pigments chlorophyll a and b, (β-carotenes, xanthophyll, reserve food a polysaccharide paramylon, related to starch, and fats, sexual reproduction not proved definitely, no cell wall, motility by flagella, usually one or sometimes more, tinsel type.
Most forms multicellular (complex), pigment contents are chlorophyll a and d, α- and β-carotene and xanthophyll’s, phycobilins—r-phycoerythrin and r-phycocyanin, reserve food in the form of floridean starch, cell wall constitution polygalactose sulphate esters and cellulose, motile cells at any stage of the life history are unknown, sexual reproduction advanced oogamous type, mostly marine, a few are fresh water.