MicL 224 Final Luquette Question and answer 2023

MicL 224 Final Luquette Question and answer 2023What enzyme does C. Freundii have that allows it to produce hydrogen sulfide (H2S) in the deamination of cysteine? cysteine desulfurase If a bacteria is using a sugar by oxidative means and not fermentation in the carbohydrate test the phenol red indicator will cause the media to be what color? Red Oxidative means Respiration TSI media contains all of the following except 1.0% maltose TSI media contains 0.1% glucose 1.0% sucrose 1.0% lactose MSA selects for Staph. aureus Two staphs learned in class epidermis and aureus MacConkey agar contains what differential agent? Also the pH indicator. Neutral Red E. coli produces a green metallic sheen on what media? EMB The selective agent in EMB is.. Eosin or Methylene Blue The indicator for gelatin agar is... HCl What is the substrate in the Voges-Proskauer test? Glucose-Peptone What is the end product of the indole test? Indole What type of agar was used in the Kirby-Bauer test? Mueller-Hinton What kind of test is the Kirby-Bauer test? Antibiotic sensitivity In the TSI test, how is red over red designated? K/K What is the end product in the methyl red test? acid Antibiotics that are effective against a wide range of bacteria are... Broad spectrum The terminal electron acceptor in respiration is? oxygen How do you measure the effectiveness of an antibiotic using the Kirby-Bauer test? measure of zone In the methyl red test, if the organism is capable of fermenting glucose and you add the methyl red reagent the indicator will turn what color? Red What's the substrate in MSA? Mannitol Gelatin differentiates between organisms that do or do not have the enzyme? gelatinase In the TSI test, if the product is respiring it is letter... K (stands for Alkaline) is red color