Basic Microbiology Quiz

Basic Microbiology Quiz is designed to help students and science enthusiasts reinforce their understanding of core microbiology concepts. Covering topics like microbial classification, cell structure, staining techniques, microscopy, and early discoveries, this quiz is perfect for beginners and those preparing for exams or interviews. Each question tests your grasp of fundamental principles that form the backbone of microbiology.

Whether you're a high school student, undergraduate, or just curious about microbes, this quiz will sharpen your knowledge and boost your confidence.

1 / 30

What is the function of the sigma factor in bacteria?

2 / 30

A bacteriophage is:

3 / 30

What kind of immunity is passed from mother to baby?

4 / 30

What is the generation time?

5 / 30

What is the main component of bacterial cell walls?

6 / 30

Koch’s postulates are used to:

7 / 30

Which structure is responsible for bacterial motility?

8 / 30

Which structure protects bacteria from phagocytosis?

9 / 30

CRISPR in bacteria serves as a:

10 / 30

Which technique separates proteins by size?

11 / 30

Which enzyme is responsible for relaxing supercoiled DNA during replication?

12 / 30

Which organelle is absent in prokaryotic cells?

13 / 30

Endotoxins are found in:

14 / 30

Gram-positive bacteria stain:

15 / 30

Which of the following is a dimorphic fungus?

16 / 30

Which is the most common bacterial shape?

17 / 30

Which medium is selective for Gram-negative bacteria?

18 / 30

Which of the following bacteria is acid-fast?

19 / 30

Who is considered the father of microbiology?

20 / 30

Which process involves the transfer of naked DNA between bacteria?

21 / 30

Which bacteria lack a cell wall?

22 / 30

Autotrophic bacteria produce energy through:

23 / 30

Which of the following is used to sterilize heat-sensitive materials?

24 / 30

Viroids differ from viruses in that they lack:

25 / 30

Which of the following is a facultative anaerobe?

26 / 30

Taq polymerase is used in:

27 / 30

The first vaccine was developed against which disease?

28 / 30

Which of the following is NOT a prokaryote?

29 / 30

Which of the following is used in the diagnosis of HIV?

30 / 30

Reverse transcriptase is found in:

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