Biochemical Test - Triple Sugar Iron (TSI) Questions with Answers





Tests for... - CORRECT ANSWER carbohydrate fermentation, gas production, & hydrogen sulfide production



TSI slant - CORRECT ANSWER contains agar, pH indicator (phenol red), 1% lactose, 1% sucrose, 0.1% glucose, & sodium thiosulfate & ferrous sulfate; as media cools after autoclaving, test tubes placed at slanted angle - provides oxygen-rich surface (aerobic) & oxygen-depleted butt (anaerobic)



how the test works - CORRECT...
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