5. Sophisticated Methods of Bacterial Detection

Try these first

1. 1.

   What does CFU stand for?

   Hint

   Think about how we represent bacterial growth.

2. 2.

   How many microorganisms does CPCB consider acceptable in 100 ml of water?

   Hint

   This is a standard we aim to meet.

3. 3.

   What is the standard limit of microorganisms allowed per 100 mL of water according to the CPCB?

   • 1
   • 5
   • 10

   Hint

   It’s a low number for safety.

4. 4.

   True or False: Flow cytometry is the only method used for bacterial detection.

   • True
   • False

   Hint

   Think about traditional methods discussed.

5. 5.

   Given a water sample contains 200 CFUs after dilution by a factor of 10, how many CFUs were originally in the sample before dilution?

   Hint

   Consider how dilution relates to the original concentration.

6. 6.

   Compare the efficiency of flow cytometry and traditional culturing. What factors can affect their performance in water analysis?

   Hint

   What are the benefits and drawbacks of speed versus accuracy in testing?