Multiple choice

If TSI (triple sugar iron) slant is inoculated with a bacterial culture, a yellow slant and a pink butt are indicated. It indicates the presence of which of the following?

  1. Glucose fermentor

  2. Glucose and sucrose fermentor

  3. Glucose and lactose fermentor

  4. Sucrose and lactose fermentor

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Yellow slant and pink butt (acid slant and alkaline butt) indicate that only glucose is fermented. So, only a glucose fermentor is in the bacterial culture.