STRAIGHTERLINE BIO-250 MICROBIOLGY EXAM STUDY GUIDE 2024 WITH QUESTIONS AND 100% ANSWERS CAREFULLY COMPILED ALREADY GRADED A+

STRAIGHTERLINE BIO-250 MICROBIOLGY EXAM STUDY GUIDE 2024 WITH QUESTIONS AND 100% ANSWERS CAREFULLY COMPILED ALREADY GRADED A+ What is a Transforming Infection? - CORRECT ANSWER-Virus that alters cell DNA, leading to cancer What is a lysogenic infection? - CORRECT ANSWER-Phage DNA is incorporated into host genome and is passed on to subsequent generations What is a Lytic Bacteriophage Infection? - CORRECT ANSWER-Host cell gets so packed with viruses that is lyses (splits) open and releases mature virions What are the three principle purposes of cultivating viruses? - CORRECT ANSWER1.) Isolate and ID viruses in clinical specimens 2.) Prepare viruses for vaccines 3.) Research viral strucutre, multiplication cycles, genetics, and effects on hosts What are three ways in which viruses are cultivated? - CORRECT ANSWER-1.) Using live animal inoculation 2.) Using bird embryos 3.) Using cell (tissue) culture techniques What are three noncellular infections agents besides viruses? - CORRECT ANSWERPrions, viroids, and satellite viruses. List the essential nutrients of a bacterial cell: - CORRECT ANSWER-CHONPS C - arbon H - ydrogen N - itrogen P - hosphate S - ulphur What are four terms that describe an organisms source of Carbon and Energy? - CORRECT ANSWER-Photoautotrophos, chemoautotrophs, chemoheterotrophs, lithoautotrophs Define Saprobe: - CORRECT ANSWER-A microbe that decomposes organic remains from dead organisms Define Parasite - CORRECT ANSWER-An organism that lives in or within a host from which it obtains nutrients and enjoys protection. Produces some degree of harm to host Define Diffusion: - CORRECT ANSWER-movement from high to low Define Osmosis: - CORRECT ANSWER-Diffusion of water through a selectively permeable membrane