PPT-Lecture 2: Protozoa None pathogenic Amoebae

Flagellates Part I Medical Parasitology Prof Dr Ahmed Ali Mohammed Nonpathogenic Amoebae A number of species of the genus Entamoeba are of worldwide distribution but do not appear to cause disease The knowledge of these species is of value in differentiating the harmless commensals from potentially pathogenic E . Keywords Introduction brPage 2br brPage 3br Definitions Figure 1 brPage 4br Differentiation and pathogenesis usually Differentiation studies on free living amoebae brPage 5br gure 2 brPage 6br brPage 7br brPage 8br Excystation brPage 9br Figure 3 br estate amoebae (Protozoa: Rhizopoda) are common inhabitants of peatlands.Strong relationships between community composition and substrate moisture inphagnum-dominated peatlands have made them particul Animal-like organisms. EJERCICIO 6. 88-107 (EDITION 14. TH. ). 77-102 (EDITION 15. TH). . http://www.microscopyu.com/moviegallery/pondscum. /. . Goals for today. Learn to use the microscope. Learn to recognized the various protozoan phyla.. AMOEBA. Protozoa:. The protozoa are a diverse group of unicellular, eukaryotic organisms. Many have evolved structural features (. organelles. ) that mimic the organs of . multicellular. organisms. Reproduction is generally by mitotic binary fission, although in some . Protozoa Proto . Pertama. . . Zoon . Hewan. Uniseluler. Mikroskopis. (3-100 . mikron. ). Soliter. / . Koloni. H. abitat : . Perairan. , . tempat. . lembab. Alat. . gerak. . Single-celled. eukaryotic microorganisms capable of performing all functions . of life. .. . Morphology: . wide variety (from amorphous to well defined). . Structure:. mass of . protoplasm. differentiated into outer. Part I. Medical Parasitology. Prof. Dr. Ahmed Ali Mohammed. II- The flagellates. The . flagellates are a group of protozoa distinguished . by having one to several thread-like extensions from the ectoplasm in their trophozoite stage called flagella (single: flagellum). The flagellate protozoa that parasitize man primarily divided to:. One-celled animal-like organisms. Found in decayed materials. Found in animal or bird feces. Found in insect bites. Found in contaminated water. Many have flagella. African sleeping sickness. Amebic dysentery. Dr.saif. . alshalah. . Amoebae . Class . Rhizopoda. (Amoebae) (. Rhiza. = root, pod= foot) . Protozoan parasite belongs to the class . Rizopodea. characteristically move by pseudopodia which present the organ of locomotion. Seven ameba, are belonging to the . (Protozoa). All . are unicellular heterotrophs. . Nutrition . by ingesting other organisms or dead organic material. . Some organisms are parasitic, since they cannot actively capture food. They must live in an area of the host organism that has a constant food supply, such as the intestines or bloodstream of an animal. . They. . are small & free-living amoebae, widely distributed. throughout the world;. in the m. oist . soil, fresh or stagnant water,. air-conditioning units & decaying vegetations.. They are considered as facultative parasites accidentally infecting man & causing serious infections. . Henning J, Wibawa H, Morton J, Usman TB, Junaidi A, Meers J. Scavenging Ducks and Transmission of Highly Pathogenic Avian Influenza, Java, Indonesia. Emerg Infect Dis. 2010;16(8):1244-1250. https://doi.org/10.3201/eid1608.091540. . : . Proton . = . pertama. . (. satu. ) + . Zoon = . hewan. ). . Ciri-ciri. . khusus. :. . Kecil (. berukuran. 0,0002 mm . sampai. 0,0003 mm), . biasanya. . terdiri. . atas. . satu. . protists. . Mostly . they are . unicellular. , but a few form colonies in which individual cells are joined by . cytoplasmic. threads or embedded in a common matrix. They are distributed in diverse moist habitats, commonly occur in sea, in fresh water and in soil. .