SM Laboratory Techniques & Quality Control

Question 1

Which method is commonly used for sterilizing microbiological media?

Accepted Answer

Autoclaving

Answer

Autoclaving is the most effective method for sterilizing microbiological media, using high-pressure steam to kill all microorganisms.

Question 2

What is the purpose of a Gram stain in microbiology?

Accepted Answer

To differentiate bacterial cell wall types

Answer

Gram staining differentiates bacteria into Gram-positive and Gram-negative based on their cell wall composition, aiding in identification and treatment selection.

Question 3

Why is aseptic technique important in microbiology laboratories?

Accepted Answer

To prevent contamination and maintain accuracy

Answer

Aseptic techniques prevent contamination of microbial cultures and ensure accurate experimental results.

Question 4

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

Accepted Answer

Ensuring sterility before use

Answer

Ensuring sterility of prepared media prevents contamination and ensures reliable experimental results.

Question 5

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

Accepted Answer

Using positive and negative controls

Answer

Using positive and negative controls ensures that microbiological tests produce valid and reproducible results.

(SM) Specialist in Microbiology Practice Test

(SM) Specialist in Microbiology Practice Test

SM Laboratory Techniques & Quality Control