1. A) Explain how this enzyme works to destroy certain bacterial contaminants in the cheese. B) Would lysozyme get rid of all potential contaminants, such as molds or Archaea? Explain your answer.

When both glucose and lactose are present in the media in which E. coli is growing, which is the preferred carbon source?   a)Lactose b)Both Glucose and Lactose c)Xylose d)Glucose

A. Antibiotics, such as gentamicin, are used in media to prevent growth of susceptible microbes. Is gentamicin media a selective, differential or enrichment media? B. Sorbitol is a sugar alcohol that all Escherichia bacteria can normally ferment into an acidic waste compound. This acidic end product is detected by including a pH indicator in the agar and noticing a color change. The strain of Escherichia that is a common food pathogen, E. coli O157:H7, however can not ferment sorbitol. It will grow similar to other E. coli, but not change the agar color. Is sorbitol in nutrient agar a selective, differential or enrichment media?​

What is the bacteria that produces toxins sometimes found in caned foods? O E. Coli. E. E. Cummings. Salmonella Botulism What are 6 Steps To Prevent Food Poisoning?

I know that Enterobacter Clocoae was supposed to test positive for the catalase test. My test results came back negative. Please why is that ?

Every year, supposedly safe municipal water supplies causeoutbreaks of enteric illness.a. How in the course of water analysis and treatment might thesepathogens be missed?b. Why is there less tolerance for a fecal coliform in drinking orrecreational water than for other bacteria?

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