1. Can you determine whether or not an organism can ferment a sugar if it does not grow in the broth? explain. 2. How can an organism have a postivie test for acid from glucose in a fermentation tube but hav a negative methyl red test, which is also a glucose fermentation test? 3. When comparing a lactose fermentation tube with a MacConkey plate, a. what addition information does a fermintation tube give? b. What addition informatino does a MacConkey agar plate give?