Biol 1020 lab final Exam and A+ Answers

Biol 1020 lab final Exam and A+ Answers Liquid media used to increase the number of microorganisms. - Broth Solid media used to isolate microbes - agar plate Normal flora bacteria used for studies involving osmotic pressure, antibiotic resistance, and biofilms. - S. epidermidis Clump of genetically identical microorganisms. - colony forming unit Single-celled fungi used for studies involving fermentation, genetics, and aging. - S. cerevisiae instrument used for spreading microorganisms across a streak plate. - Inoculation loop 1. Agar plates should be labeled on the _____. - bottom 2. Aseptic techniques are necessary to _____. a. maintain safety b. isolate pure cultures c. prevent the spread of unwanted microbes d. All of the above - d. all of the above Agar is a solid media used in both slants and plates. True False - true 4. The inoculation loop must be sterilized _____ when creating a streak plate. -before use -between use in each quadrant -after completing all quadrants -All of the above - all of the above Morphology can be used to identify microorganisms with or without the use of a microscope. True False - true 6. _____ is a rod-shaped bacteria important to the study of genetics and evolution. -Escherichia coli -Saccharomyces cerevisiae -Staphylococcus epidermidis -All of the above - E. coli 1. Aseptic technique includes _____ . -working quickly and efficiently around open media containers -not talking or breathing over open media containers -washing hands before and after working with media -All of the above - all of the above 2. All equipment and work surfaces should be cleaned with a bleach solution after contacting microbe cultures. True False - true Tryptic Soy Agar (TSA) is a _____ media. -general purpose liquid -selective liquid -general purpose solid -None of the above - general purpose solid