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A flagellum (plural: flagella) is a long, slender projection from the cell body, whose function is to propel a unicellular or small multicellular organism. The depicted type of flagellum is found in bacteria such as E. coli and Salmonella , and rotates like a propeller when the bacterium swims.
English: The Colonial Flagellate Hypothesis proposes that multicellular organisms evolved from a single flagellated cell. it is believed that a group of these unicellular flagellates combine to form an aggregate then form a sphere which develops specialized cells (such as reproductive cells), and then fold in on themselves to create a tissue layer.
In some flagellates, flagella direct food into a cytostome or mouth, where food is ingested. Flagella role in classifying eukaryotes. Among protoctists and microscopic animals, a flagellate is an organism with one or more flagella. Some cells in other animals may be flagellate, for instance the spermatozoa of most animal phyla.
Neometanema is a genus of phagotrophic flagellates belonging to the Euglenida, a diverse group of flagellates in the phylum Euglenozoa. [1] It is the sole genus within the monotypic family Neometanemidae and suborder Metanemina. [2] It composes the order Natomonadida together with a closely related clade of osmotrophs known as Aphagea. [3]
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Anisonemia is a monophyletic group, or clade, of flagellates that contains several phagotrophic species and a clade that has evolved toward primary osmotrophy, named Aphagea.
The heterolobosean pathogen Naegleria fowleri can behave as an amoeba (center) or as a flagellate (right).. An amoeboflagellate (pl. amoeboflagellates) is any eukaryotic organism capable of behaving as an amoeba and as a flagellate at some point during their life cycle.
Two anteriorly inserted whiplash flagella. Each flagellum originates from a basal granule in the anterior papillate or non-papillate region of the cytoplasm. Each flagellum shows a typical 9+2 arrangement of the component fibrils. Contractile vacuoles are near the bases of flagella. Prominent cup or bowl-shaped chloroplast is present.