Question

Which of the following devices are used to maintain a sterile environment while working with microorganisms?

(a) Laminar Airflow

(b) Microwave oven

(c) Water Bath

(d) Incubator

I had been asked this question in class test.

My question comes from General Pathology topic in chapter Pathology of Clinical Science

Answer 1

Correct choice is (a) Laminar Airflow

The best explanation: A laminar air flow is like a sterile work station. It has a UV lamp and the whole chamber is aerated with sterile air to destroy any unwanted microorganisms. When any work is being done with microorganisms, they are placed in a petridish and placed in the laminar air flow. This allows sufficient aeration to the organisms without posing danger to the scientists. The scientists can work on the organisms by using gloves and accessing the chamber via special small holes which are wide enough for only the arms to pass through. Thus, the body stays out while the work in being done. This allows for isolation and maintains sterility.