01:146:328 Lecture Notes - Lecture 17: Metamonad, Diplomonad, Naegleria

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:328
• Professor: A.Keating

Document Summary

Traditional parasite: nematoda, platyhelminthes trematodes and cestodes, helminths (worms) multicellular, protozoa unicellular, heterotrophs rely on others to provide nutrients. Unicellular eukaryotes: order ameobida, ~ 45,000 spp, not all protozoa are parasites, there are many free living spp, classification, introduction, entamoeba, endolimax. Phylum metamonada flagella: order diplomonadida, giargia, order. Pseudopodia: used by protozoa for locomotion and food acquisition, requires a solid substrate in order to move (can"t be in water) Cilia: similar to the flagella except that they are shorter and more numerous. Apical complex: penetration of host cells, order amoebida. In the phylum rhizopoda: introduction, habitat, most free living, some intestinal tract of either vertebrates or invertebrates. Reproduction: asexual, binary fission (split into two) Symbiotic relationships in humans: most of these relationships are commensals (+/0, amoeba benefits / host has no, few are pathogenic (+/-) Centric or eccentric: centric evenly distributed peripheral chromatin (pc, eccentric uneven clumped peripheral chromatin.