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Question: 2 a ftm is a liquid medium that supports growth...

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2. A. FTM is a liquid medium that supports growth of organisms of varying oxygen tolerance. Oxygern 5 2 is abundant on the surface of the tube and diffuses into the media producing a gradient of decreasing oxygen concentration from top to bottom of tube. Four fresh FTM tubes (A-D) are given to you. You are also given 4 tubes of the following organisms grown in liquid nutrient media: A) Escherichia coli is a facultative anaerobe; B) Mycobacterium tuberculosis is an obligate aerobe, C) Clostridium difficile is an obligate anaerobe; D) Salmonella typhimurium is a facultative anaerobe. All 4 organisms are human pathogens and prefer body temperature for growth. If the organisms were inoculated into the FTM tubes shown below, illustrate their growth pattern after incubation. 1 AB

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