Answer Happy

3. Bacteria grow in colonies. a. A colony of bacteria is a All genetically identically identical members of that colony is a clone colony that arose by (what type of division?). b. A colony does not grow to an infinite size (or at least fill the confines of the Petri plate) because c. What is the job of a buffer in microbial culture media? Why is it necessary to include buffers in microbial culture media? d. A particular microbe typically grows much faster in the iab than in nature because 4. Reading the label on a disinfectant is important because multiple factors affect the rate of microbial death in the hands of a microbial control agent. a. Increased microbial numbers will (increase or decrease?) the effectiveness of a disinfectant because b. Describe the effect of temperature on the effectiveness of a disinfectant. Answer: c. Two examples of organic matter are and If you were trying to disinfect an area with abundant organic matter present, you would first need to (do what?) in order to properly disinfect the area. d. Increased time of exposure will (increase or decrease?) the effectiveness of a disinfectant because Always read the label for how long to let the disinfectant sit there before you wipe it up! 5. There are multiple physical methods of microbial control. a. High heat can be used as microbial control because (Note: discuss both moist heat and dry heat). Example of moist heat sterilization: Example of dry heat sterilization: b. Filtration can be used as microbial control because At least one type of solution that requires filtration sterilization is