Amoeba proteus, previously Chaos diffluens, is an amoeba closely related to the giant amoebae. It belongs to the Rhizopoda, more specifically to the Phylum Sarcodina. This small protozoan uses tentacular protuberances called pseudopodia to move and phagocytosize smaller unicellular organisms, which are enveloped inside the cell's cytoplasm in a food vacuole, where they are slowly broken down by enzymes. A. proteus possesses a nucleus containing granular chromatin, and is therefore an eukaryote. Chaos diffluens, an amoeba. ... For other uses, see Scientific classification (disambiguation). ... Kingdoms Eukaryotes are organisms with complex cells, in which the genetic material is organized into membrane-bound nuclei. ... Typical phyla Rhodophyta (red algae) Chromista Heterokontophyta (heterokonts) Haptophyta Cryptophyta (cryptomonads) Alveolates Pyrrhophyta (dinoflagellates) Apicomplexa Ciliophora (ciliates) Excavates Euglenozoa Percolozoa Metamonada Rhizaria Radiolaria Foraminifera Cercozoa Amoebozoa Choanozoa Many others; classification varies The Kingdom Protista or Protoctista is one of the commonly recognized biological kingdoms, including all the eukaryotes except for... Subgroups Mycetozoa (slime moulds) Archamoebae Gymnamoebia Various others The Amoebozoa are a major group of amoeboid protozoa, comprising the majority of the amoebae that move using blunt or lobose pseudopods. ... Subgroups Mycetozoa(slime moulds) Archamoebae Pelobiontida Entamoebida Gymnamoebia Various others The Amoebozoa are a major group of amoeboid protozoa, including the majority that move by means of internal cytoplasmic flow. ... Genera Amoeba Chaos Deuteramoeba Hydramoeba Metachaos Parachaos Polychaos Trichamoeba The Amoebidae are a family of amoebozoa, including naked amoebae that produce multiple pseudopodia of indeterminate length. ... For other uses, see Amoeba (disambiguation). ... This article does not cite any references or sources. ... For other uses, see Amoeba (disambiguation). ... Chaos is a genus of giant amoebae, varying from 1-5 mm in length. ... Protozoa (in Greek protos = first and zoon = animal) are single-celled creatures with nuclei that show some characteristics usually associated with animals, most notably mobility and heterotrophy. ... Tentacles can refer to the elongated flexible organs that are present in some animals, especially invertebrates, and sometimes to the hairs of the leaves of some insectivorous plants. ... Pseudopods or pseudopodia (false feet) are temporary projections of eukaryotic cells. ... Steps of a macrophage ingesting a pathogen: a. ... A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). ... Cross section of cell with cytoplasm labeled at center right. ... Schematic of typical animal cell, showing subcellular components. ... HeLa cells stained for DNA with the Blue Hoechst dye. ... Kingdoms Animalia - Animals Fungi Plantae - Plants Chromalveolata Protista Alternative phylogeny Unikonta Opisthokonta Metazoa Choanozoa Eumycota Amoebozoa Bikonta Apusozoa Cabozoa Rhizaria Excavata Corticata Archaeplastida Chromalveolata Animals, plants, fungi, and protists are eukaryotes (IPA: ), organisms whose cells are organized into complex structures by internal membranes and a cytoskeleton. ...
See
Amoeba For other uses, see Amoeba (disambiguation). ...
Amoeba is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular organism.
The word amoeba or ameba is variously used to refer to it and its close relatives, now grouped as the Amoebozoa, or to all protozoa that move using pseudopods, otherwise termed amoeboids.
Amoeba itself is found in freshwater, typically on decaying vegetation from streams, but is not especially common in nature.
When the amoeba has two or three pseudopodia probing around the tips of those that are to be retracted become a gel forcing the cytoplasm back into the main cell body and pushed into the new leading pseudopodium.
Amoebas capture their prey by surrounding it with their pseudopodia and engulfing it into a vacuole full of water.
In reality various parts of the amoeba are touching a surface and some parts are free of any surface, so the animal tends to creep along by dropping a pseudopodium here and there and pulling its self along by gripping the substratum.
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