delgado microbiology 211 final exam practice questions and answers

delgado microbiology 211 final exam practice questions and answers Lister - Answer️️ -English surgeon who sterilized his equipment Modern cell theory - Answer️️ -All known living things are made up of one or more cells Cells are the basic units of all living things Cell arise from preexisting cells by cell division Cells contain hereditary info that is passed on during cell division Prion - Answer️️ -protein infectious particle transmission electron microscope (TEM) - Answer️️ -high magnification (100,000X) Gram positive bacteria stain - Answer️️ -purple; Bacillus - rod chemotaxis - Answer️️ -movement towards or away from a particular chemical attractant - Answer️️ -chemical is desirable and the bacteria moves towards it If Eukaryotic and bacterial organisms were the same, then most medicines and treatments would be toxic to humans? T/F? - Answer️️ -True ©SOPHIABENNET@2024/2025 Thursday, August 22, 2024 1:01 AM DELGADO COMMUNITY COLLEGE 2 mesophiles - Answer️️ -most common group, prefer warm from ~20-40ºC but not too hot (Goldilocks) obligate anaerobes - Answer️️ -cannot live in aerobic environments, oxygen gas is toxic, just trace amounts of O2 will kill these bacteria log (exponential phase) - Answer️️ -cells are growing at a constant rate, doubling every generation metabolites - Answer️️ -materials that cells need in order to grow and reproduce stationary phase - Answer️️ -growth phase where death equals birth; when birth and death rates are equal sterilization - Answer️️ -killing or removing all microbes including live bacteria, eukaryotic microbes, bacterial endospores, and all viruses nosocomial infections - Answer️️ -hospital acquired infections autoclave - Answer️️ -uses wet heat/heated steam to kill pathogens Auxotroph - Answer️️ -mutant cell that requires an additional growth factor ©SOPHIABENNET@2024/2025 Thursday, August 22, 2024 1:01 AM DELGADO COMMUNITY COLLEGE 3 frameshift mutation - Answer️️ -when a nucleotide is inserted or removed from the DNA sequence all of the codons after that point are shifted (moving the reading frame) transposons - Answer️️ -transposable elements/sequence of DNA that can make copies of itself and insert those copies into the different parts of the DNA sequence knockout mutagen - Answer️️ -when any mutation renders a gene non-functional mutagen - Answer️️ -something that causes mutations DNA-mediated transformation - Answer️️ -gets naked/section of DNA from environment innate immune system - Answer️️ -you are born with this s