LAB 5 TEST BANK ENTERIC UNKNOWNS The goal when dealing with enteric unknown is to determine the of the organism you have True False Characteristics of all enterobacteraceae include Gram negative rods Oxidase negative Catalase positive Facultatiave anaerobes If they are motile, they have peritrichous flagella, so the can run and tumble. Only A, B, and C All of the above Coliforms are found in The soil Warm blooded animanls Gastrointestinal tract Both B and C Methyl Red (MR) is a pH indicator that starts out yellow and becomes red if acid is present True False If an organism has the ability to ferment sugars, the end products of the fermentation process are Acids Oxidase negative Catalase positive If the MR tube red, the organism was able to ferment sugars False True What makes ENTEROBACTERACEAE motile? Monotrichous flagella peritrichous flagella Neither, as they are not motile What is an enzyme that breaks down milk sugar (lactose) into glucose and galactose? A. Lactase B. Hydrolase C. Arginine dehydrogenase D. None of the above If an organism’s ADH test is red (positive) or yellow (negative), it is testing for the presence of which particular enzyme? A. Lactase B. Hydrolase C. Arginine dehydrogenase D. None of the above True or False? When ADH breaks down argentine, it becomes ornithine, which is more basic True False
LAB 5 TEST BANK ENTERIC UNKNOWNS The goal when dealing with enteric unknown is to determine the of the organism you have True False Characteristics of all enterobacteraceae include Gram negative rods Oxidase negative Catalase positive Facultatiave anaerobes If they are motile, they have peritrichous flagella, so the can run and tumble. Only A, B, and C All of the above Coliforms are found in The soil Warm blooded animanls Gastrointestinal tract Both B and C Methyl Red (MR) is a pH indicator that starts out yellow and becomes red if acid is present True False If an organism has the ability to ferment sugars, the end products of the fermentation process are Acids Oxidase negative Catalase positive If the MR tube red, the organism was able to ferment sugars False True What makes ENTEROBACTERACEAE motile? Monotrichous flagella peritrichous flagella Neither, as they are not motile What is an enzyme that breaks down milk sugar (lactose) into glucose and galactose? A. Lactase B. Hydrolase C. Arginine dehydrogenase D. None of the above If an organism’s ADH test is red (positive) or yellow (negative), it is testing for the presence of which particular enzyme? A. Lactase B. Hydrolase C. Arginine dehydrogenase D. None of the above True or False? When ADH breaks down argentine, it becomes ornithine, which is more basic True False
TQ%20bank%20Lab%205.docx