8/17/2016 Alga Algae Non-cellular,not strictly anogis/Viruses Photosynthetic eukaryotes Parasitic and only replicate within a living cell Cell walls of mary-cellulose Often cause damage to the host cell Found in fresh or salt water,soil,and in Hosts include microorganisms,plants,and animals association with plants HIV viru Only seen using an electron microscope Reproduce sexually or asexually ae enes and Virus particle-core made up of DNA or RNA(nucleic acid)surrounded by a protein coat that may be encased in a lipid membrane Virus particle Produce oxygen and carbohydrates used by other organisms Bacterial cell Important role in the balance of nature Genetic materia Helminths/Parasitic worms Classification of Microorganisms Not strictly a microorganism In 1978,Carl Woese devised a system of classification base ●Eukaryotic Tapesorms on the cellular organization of organisms Three-Domains of Life ●Multicellular Bacteria Parasitic and medically cell walls-peptidoglycan relevant Archaea Two major groups cell walls,if present,lack peptidoglycan flatworms and round worms Eukarya Protista (slime molds,protozoa,and algae) Microscopic stages of their life cycles Fungi (yeast,molds,mushrooms) Plants (mosses,ferns,conifers,and flowering plants) Animals (sponges,worms,insects and vertebrates) 68/17/2016 6 Photosynthetic eukaryotes Cell walls of many – cellulose Found in fresh or salt water, soil, and in association with plants Reproduce sexually or asexually Need light, water, and carbon dioxide for food production and growth Do not require organic compounds from the environment Produce oxygen and carbohydrates used by other organisms Important role in the balance of nature Alga / Algae Volvox aureus green alga found in lakes, ponds and ditches grass-green algae color due to two types chlorophylls Virus particle Bacterial cell Genetic material Virus / Viruses Non-cellular, not strictly an organism Parasitic and only replicate within a living cell Often cause damage to the host cell Hosts include microorganisms, plants, and animals Only seen using an electron microscope Virus particle – core made up of DNA or RNA (nucleic acid) surrounded by a protein coat that may be encased in a lipid membrane HIV virus Not strictly a microorganism Eukaryotic Multicellular Parasitic and medically relevant Two major groups flatworms and round worms Microscopic stages of their life cycles Helminths / Parasitic worms In 1978, Carl Woese devised a system of classification based on the cellular organization of organisms Three-Domains of Life Bacteria cell walls - peptidoglycan Archaea cell walls, if present, lack peptidoglycan Eukarya Protista (slime molds, protozoa, and algae) Fungi (yeast, molds, mushrooms) Plants (mosses, ferns, conifers, and flowering plants) Animals (sponges, worms, insects and vertebrates) Classification of Microorganisms