You inoculated some bacteria into a tube of fermentation phenol red broth the broth turns yellow and you see a large bubble that

Question

You inoculated some bacteria into a tube of fermentation phenol red broth the broth turns yellow and you see a large bubble that fills the little tube inside ie the bubble empty space extends beyond the tip of the little tube This tells you sugar in the tube was fermented into acid and gas NO fermentation took place the sugar in the tube was fermented into alcohol only sugar in the tube was fermented into acid ONLY O sugar in the tube was fermented into gas ONLY

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