TSI (Triple Sugar Iron Agar) Questions With Complete Solutions

Is TSI gram+ or gram- correct answer: gram- What is the application of TSI? correct answer: used to differentiate members of Enterobacteriacea and to distinguish them from other gram- rods What is the media in TSI (triple sugar iron) correct answer: 1 glucose, lactose & sucrose 2 animal protein 3 ferrous sulfate 4 sodium thiosulfate 5 phenol red What is the purpose of glucose, lactose & sucrose correct answer: carbohydrate for fermentation What is the purpose of animal proteins? correct answer: source of carbon & nitrogen What is the purpose of Ferrous sulfate? correct answer: source of oxidized sulfur & hydrogen sulfide indicator What is the purpose of sodium thiosulfate? correct answer: source of oxidized sulfur What is the purpose of phenol red? correct answer: pH indicator Yellow slant/ yellow butt correct answer: glucose & lactose and/or sucrose fermentation with acid accumulation in s