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- If lysozyme is added to a microbial culture. Predict what will be observed if the culture is affected by the action of lysozyme. A change in color will be visible in the tube. An increase in absorbance will be observed over time. A decrease in absorbance will be observed over time. An increase in turbidity will be observed over time.Soap and detergents are categorized as which type of antimicrobial chemical? oxidizing agent aldehyde surfactant alcoholOne of the useful properties of agar is its inability to be digested by most microbes. True False
- True or false? it is possible to kill or remove all microorganisims by hand washing or using hand sanitizer ?One of the following matches indicatIng early microbial spoilage of pharmaceutical products is incorrect Select one: Microbial pigments / Color changes Amines / Unpleasant fishy smelling and tasting Fatty acids / Sour taste Depolymerization of suspending agents / Production of slimy and viscous massesIn the laboratory, autoclaving is required to prepare media for the growth of microorganism. What type of method of control does this involve? Dry Heat Moist Heat Chemical Radiation All of the options
- Which of the following factors is NOT significant in determining the effectiveness of a microbial treatment? Group of answer choices The toxins secreted by the microbe being treated. The susceptibility of the microbe to the treatment. The concentration of the treatment. The length of exposure to the treatmentUse of chemical agents to destroy microbes on skin or tissues Reinoval of microbes from surfaces by scrubbing Removal or destruction of all microbes Use of chemical agents to destroy microbes on surfaces used by the public Use of physical/chemical agents to destroy microbes on non-living objects Free of contamination by pathogens Antisepsis (antiseptic) Aseptic Degerming Sanitization Sterilization DisinfectionWhen a disinfectant or antiseptic's effectiveness is expressed as a phenol coefficient, a number ____ 1.0 means the chemical agent is more effective than phenol. less than greater than equal to
- Considering microbial identification methods, to which category would the following method belong based on what it measures? Examination of the shape and height of bacterial colonies growing on a plate O Phenotypic Genotypic OSerological Biochemical MacBook AirGrowth of microorganisms can't be controlled in a lab setting. true/ falseAs an aspiring Nurse, the need for the culture of a new pathogenic microorganism in the laboratory has been allocated to you. Applying all the guidelines involved in the successful isolation and cultivation of microbes, discuss the culturing system that is most appropriate for this activity and state your reason(s) for this choice