1. Why is direct flaming preferred when disinfecting loops and needles?

2. Why is it important to flame the entirety of the loop and not just the tip? What consequences can be seen when this process is not done correctly?

3. What is the difference between quadrant streak method A from method B?

4. Why do we use a pencil instead of a pen when labelling culture tubes or plates? Are there other alternatives in labelling?

5. Why is an inoculating needle used in Subculturing Techniques? Can a loop be used instead?

Answer rating: 100% (QA)

Answer Q1 Flame sterilization is a very quick simple method of killing microorganisms on an inoculating loop or needle The loop or needle is held inside a flame for a few seconds to bring it to rednes... View the full answer