Please answer them Asap for an upvote. Thank you. Explain the chemical process that causes the following reactions in the inoculated biochemical media: 1. In phenol fermentation tubes, gas generation...

Please answer them Asap for an upvote. Thank you. Explain the chemical process that causes the following reactions in the inoculated biochemical media: 1. In phenol fermentation tubes, gas generation and color changes are seen. 2. Changes in the color of the buffered glucose medium 3. TSI slant blackening of the medium