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- if a kitchen washcloth harbors microbes that can be transmitted to an individual to cause disease, then the washcloth is consideredWhat statement describes the danger of using heavy metals to control microbe growth? Group of answer choices Heavy metals promote biofilm formation in humans. Heavy metals stimulate some microbes to reproduce even more. Heavy metals can assist with virus attachment to host cells. Heavy metals are toxic to many organisms besides microbes.What is minimum amount of time one much wash his or her hard to kill microbes? A. 1 second B.60 seconds C.20 seconds D. 10 seconds
- In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified. In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified. True FalseThe inhibition of bacterial growth and reproduction without necessarily destroying the organisms is the result of a disinfectant a sterilant a bactericide an antisepticFoodborne pathogens often require the presence of a large number of microbes before an active infection results. These microbes would have a high Group of answer choices virulence. incubation period. mortality. median lethal dose (LD50). median infectious dose (ID50).
- Which of the following pathogens is the LEAST virulent? 1. Microbe B, ID50 = 1,000 cells 2. Microbe D, ID50 = 10 cells 3. None of the other four answers (Cannot be determined from information provided) 4. Microbe C, ID50 = 100 cells 5. Microbe A, ID50 = 100,000 cellsWhen food leftovers are stored in a refrigerator, how does this help prevent food borne illnesses? Group of answer choices Low temperatures deactivate any toxins that might be produced by microbes. Low temperatures inhibit the metabolism and growth of microbes. Low temperatures disrupt microbe membranes and kill any microbes that are present. Low temperatures prevent microbes from forming biofilms.When a child skins their knee and neosporin is applied, this reduces the chances of pathogens gaining entry to the body by Group of answer choices use of a biofilm. the parenteral route. adhesion to receptor proteins. endocytosis.
- Which microbes predictably cause NO negative effects when they are inside you? Microbes that are only transmitted vertically. All horizontally transmitted microbes. Microbes that are transmitted horizontally with the involvement of a vector. Microbes that are transmitted horizontally without the involvement of a vector.A broth containing 1 million bacterial cells is treated with an antimicrobial agent that kills 90% of the cells in 1 minute. What is the minimum amount of time it will take before all the cells in the broth are dead? 3 minutes 5 minutes 7 minutes 10 minutesTrue or False: An opportunistic pathogen always causes disease.
