Which of the following best describes the gram

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Chapter 22 / Exercise 2
Biology Today and Tomorrow with Physiology
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9.Which of the following best describes the Gram-negative bacterium Escherichia coli? a.It does not have the enzyme Tryptophanase It is a Mixed-Acid fermenter It is not a Butanediol fermenter It cannot use Citrate as its sole Carbon and Energy source b.It does not have the enzyme Tryptophanase It is not a Mixed-Acid fermenter It is a Butanediol fermenter It can use Citrate as its sole Carbon and Energy source c.It has the enzyme Tryptophanase It is a Mixed-Acid fermenter It is not a Butanediol fermenter It cannot use Citrate as its sole Carbon and Energy source d.It has the enzyme Tryptophanase It is not a Mixed-Acid fermenter It is a Butanediol fermenter It can use Citrate as its sole Carbon and Energy source C is just the only set of IMViC results that fits E. coli
10.The catalase enzyme is used by many aerobic bacteria to break down what potentially harmful molecule?
No explanation needed 11.According to our identification scheme, seeing a Gram-positive rod is probably good enough evidence by itself to determine what bacterium you are working with from our Rogues Gallery. What other result would confirm this?
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Biology Today and Tomorrow with Physiology
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Chapter 22 / Exercise 2
Biology Today and Tomorrow with Physiology
Starr/Evers
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MIC103L Exam 2 Key Form A June 5th2017 Page 4of 6e.Turning Purple when oxidase reagent is added to a sample of this bacterium
12.LSL broth is used in water quality testing for what reasons?
iv.Sodium lauryl sulfate inhibits growth of Gram-positive bacteria

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