SM Laboratory Techniques & Quality Control

Question 1

Which method is commonly used for sterilizing microbiological media?

Accepted Answer

Autoclaving

Answer

Filtration

Answer

UV irradiation

Answer

Refrigeration

Question 2

What is the purpose of a Gram stain in microbiology?

Accepted Answer

To differentiate bacterial cell wall types

Answer

To detect fungal infections

Answer

To measure bacterial motility

Answer

To identify viral particles

Question 3

Why is aseptic technique important in microbiology laboratories?

Accepted Answer

To prevent contamination and maintain accuracy

Answer

To increase bacterial growth

Answer

To improve staining procedures

Answer

To speed up microbial identification

Question 4

What is a critical step in quality control of microbiological media?

Accepted Answer

Ensuring sterility before use

Answer

Skipping sterilization

Answer

Using expired media

Answer

Storing media at room temperature indefinitely

Question 5

Which control measure is used to verify accuracy in microbiological testing?

Accepted Answer

Using positive and negative controls

Answer

Ignoring test deviations

Answer

Only using experimental samples

Answer

Avoiding calibration of equipment

Question 6

Why is regular calibration of laboratory instruments important?

Accepted Answer

To ensure accuracy and consistency

Answer

To increase testing speed

Answer

To reduce equipment costs

Answer

To eliminate human errors