Microbiology StraighterLine unit 1 Correct Answered Questions| Already Graded A+

Microorganism : Organisms too small to be seen by the naked eye Less than 1mm Unicellular If multicellular thay lack different tissues acellular microorganisms : viruses -protein and nucleic acid, viroids - RNA satellites -nucleic acid with a protein shell prions- protein Cellular microorganisms : fungi - yeast molds protists - algae, Protozoa, slime molds bacteria -E Coli archaea - methanogens (natural gas)extreme environments prokaryotic cell 2 : cell that does not have a nucleus or other membrane-bound organelles. Eukaryotic cells : Contain a nucleus and other organelles that are bound by membranes. Carl Woese : Devised a system of classification based on the cellular organization of organisms (bacteria and archaea) Protista Kingdom : Single cell, microscopic organisms, EUkaryotic cells Bacteria : Can be pathogens (Black Plague) Human biome Break down dead animal and plant cells Used to make bread cheese antibiotics vitamins and enzymes Bacteria are abundant where : Extreme sites of temperature PH and salinity. Major part of human microbiome Domain Archaea 3 : One of the three domains of life; contains prokaryotic cells that often live in extreme habitats and have unique genetic, biochemical, and physiological characteristics; its members are sometimes referred to as archaea. Domain Eukarya : Domain of all organisms whose cells have nuclei, including protists, plants, fungi, and animals Major types of protists : algae, protozoa, slime molds, water molds Algae are : photosynthetic and produce oxygen, foundation of aquatic food chains Protozoa are : single-celled microorganisms that are animal like and motile; they ingest organic matter slime molds are : protists that behave like Protozoa in one stage of life and like a fungi in another Water molds ar