MIP 302 - Exam 1 with 100% correct answers graded A+

MIP 302 - Exam 1 What are the 5 kingdoms? - correct answer Animalia, Plantae, Fungi, Protista, Monera What kingdom(s) contain prokaryotes? - correct answer Monera What kingdom(s) contain eukaryotes? - correct answer Animalia, Plantae, Fungi, Protista What kingdom(s) contain microorganisms? - correct answer Protista, Fungi, Monera What kingdom do bacteria fall into? - correct answer Monera What kingdom do fungi fall into? - correct answer Fungi What kingdom do protists fall into? - correct answer Protista What are yeasts? - correct answer Single celled fungi What are molds? - correct answer An aggregate of many fungi cells What is a virus? - correct answer Acellular; composed of protein and nucleic acid (either RNA or DNA, but not both); obligate intracellular parasites What is a prion? - correct answer Composed of only protein; cause normal cellular protein to refold and become prion protein What are the three domains? - correct answer Archaebacteria, Eubacteria, Eukarya Explain how to properly write a scientific name of a bacteria. - correct answer Genus name comes first and should be capitalized; species name comes second and should be lower case; both names are italicized or underlined; the first time a name is used it should be written out in full but after that, the genus name can be shortened to one letter What is aseptic technique? - correct answer Techniques used to prevent microbial contamination What is the purpose of aseptic technique? - correct answer To prevent microbial contamination in our samples What are the general basic rules of aseptic technique? - correct answer Clean your work bench of clutter; put on your lab coat; tie back long hair; wash your hands; disinfect your bench with Wescodyne; work with open tubes near the flame to prevent entry of airborne microbes; slant open tubes and plates away from your mouth and nose; never lay caps, lids or culture tubes on the bench top; do not talk while tubes or plates are open; never put anything in your mouth; work quickly; keep tubes and plates closed when not in use; remove your lab coat before you leave; wash your hands What are microscopic ocean-dwelling algae called? - correct answer Phytoplankton What is special about the cell walls of algae? - correct answer They are rigid and made up of silica or calcium carbonate which cause them to have symmetrical shapes What is responsible for diatomaceous earth? - correct answer Diatoms and their silica cell walls What is a protozoan? - correct answer Usually motile, eukaryotic, unicellular protist What types of organisms within the fungi kingdom did we observe? - correct answer Yeasts and molds What are the cell walls of yeasts and molds comprised of? - correct answer Chitin How do molds reproduce? - correct answer Yeasts reproduce asexually by budding and sexually through the production of spores; molds and mushrooms reproduce asexually through spores and sexually through gamete and spore formation What do yeasts produce under aerobic conditions? - correct answer Carbon dioxide What do yeasts produce under anaerobic conditions? - correct answer Carbon dioxide and alcohol through fermentation What are hyphae? - correct answer Long, threadlike filaments that join together to form the mycelium What are hyphae called when protoplasms stream continuously through them? - correct answer Coenocytic hyphae What are hyphae called when they have cross walls between them? - correct answer Septate hyphae What are the different variations of hyphae? - correct answer Coenocytic hyphae and septate hyphae What are mycelium? - correct answer A network of hyphae What are sporangium? - correct answer Aerial hyphae that produce spores; give molds their 'hairy' appearance What are spores? - correct answer a minute, typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion When preparing a slide for staining, why is it important to only place a small amount of cells on the slide? - correct answer So as not to saturate the slide while viewing it Why are slides allowed to dry completely before heat-fixing? - correct answer So that we don't boil the microbes and cause them to pop How does one determine whether one's cells are algae or protozoans? - correct answer Algae are photosynthetic so they will appear green or yellow; protozoa are usually motile