Kingdom Protista Amoeba sp Kingdom Protista Phylum Sarcomastigophora

Kingdom: Protista

Amoeba sp.

Kingdom : Protista Phylum : Sarcomastigophora Subphylum: Sarcodina Superclass : Rhizopoda Class : Lobosa Order : Amoebida Family : Amoebidae e. g. : Amoeba sp.

Comment: Amoeba (also spelled ameba) is a genus of protozoa that moves by means of temporary projections called pseudopods (false feet), and is well-known as a representative unicellular organism. Protozoa are single-celled eukaryotes, which demonstrate mobility and heterotrophy like animals, but are grouped in the kingdom Protista.

Amoebas are found in freshwater, typically on decaying vegetation from streams, but are not especially common in nature. However, because of the ease with which they may be obtained and kept in the lab, they are common objects of study, both as representative protozoa and to demonstrate cell structure and function. The cells have several lobose pseudopods, with one large tubular pseudopod at the anterior and several secondary ones branching to the sides.

Each has a single nucleus, and a simple contractile vacuole that maintains its osmotic pressure, as its most recognizable features. Amoebas are characterized by the pseudopodia, which are used in both transportation and digestion. They can encircle smaller protists and bacteria, close around them, and secrete digestive enzymes into this vacuole. The jellylike cytoplasm is differentiated into three parts, the thin, outer plasma membrane, a stiffer ectoplasmic layer within the outer plasma membrane, and the granular endoplasm in the center, which contains the nucleus and vacuoles. Amoebas absorb oxygen and water across the entire plasma membrane. Amoebas are popularly considered to reproduce asexually by splitting into two parts.

Entamoeba histolytica Entamoeba coli

Kingdom : Protista Phylum: sarcomastigophora Subphylum : Sarcodina Superclass : Rhizopoda Class : Lobosa Order : Amoebida Family : Entamoebidae e. g. 1 : Entamoeba histolytica e. g. 2 : Entamoeba coli

Entamoeba histolytica is a protozoan parasite. Entamoeba histolytica is transmitted by the ingestion of amebic cysts through fecal-oral contact, usually through contaminated food or water sources. Entamoeba coli The presence of E. coli is not cause in and of itself to seek treatment as it is considered harmless.

Kingdom : Protista Phylum : Sarcomastigophora Subphylum : Mastigophora Class : Phytomastigophora Order : Euglenoidida Family : Euglenoidae e. g. : Euglena sp.

Euglena are found in freshwater and salt water. They are often abundant in quiet inland waters where they may bloom in numbers sufficient to color the surface of ponds and ditches green. Most species of Euglena have photosynthesizing chloroplasts within the body of the cell, which enable them to feed by autotrophy, like plants. However, they can also take nourishment heterotrophically, like animals. Since Euglena have features of both animals and plants, Euglena reproduce asexually through binary fission.

Kingdom : Protista Phylum : Sarcomastigophora Subphylum : Mastigophora Class : Zoomastigophora Order : Kinetplastida Family : Trypanosomatidae e. g. : Trypanosoma sp.

Trypanosoma is unicellular parasitic flagellate protozoa. Most trypanosomes are heteroxenous (requiring more than one obligatory host to complete life cycle) and most are transmitted via a vector. The majority of species are transmitted by bloodfeeding invertebrates, In an invertebrate host they are generally found in the intestine, but normally occupy the bloodstream or an intracellular environment in the mammalian host. Trypanosomes infect a variety of hosts and cause various diseases, including the fatal human diseases sleeping sickness, caused by Trypanosoma brucei, and Chagas disease, caused by Trypanosoma cruzi.