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

Which bacteria lack a cell wall?

2 / 30

Which medium is selective for Gram-negative bacteria?

3 / 30

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

4 / 30

Reverse transcriptase is found in:

5 / 30

Which enzyme is responsible for relaxing supercoiled DNA during replication?

6 / 30

What is the main component of bacterial cell walls?

7 / 30

Viroids differ from viruses in that they lack:

8 / 30

Which organelle is absent in prokaryotic cells?

9 / 30

CRISPR in bacteria serves as a:

10 / 30

Which of the following bacteria is acid-fast?

11 / 30

Koch’s postulates are used to:

12 / 30

Which process involves the transfer of naked DNA between bacteria?

13 / 30

Endotoxins are found in:

14 / 30

Which of the following is a facultative anaerobe?

15 / 30

A bacteriophage is:

16 / 30

Autotrophic bacteria produce energy through:

17 / 30

Which of the following is a dimorphic fungus?

18 / 30

Which structure is responsible for bacterial motility?

19 / 30

Who is considered the father of microbiology?

20 / 30

Which structure protects bacteria from phagocytosis?

21 / 30

Which technique separates proteins by size?

22 / 30

Taq polymerase is used in:

23 / 30

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

24 / 30

The first vaccine was developed against which disease?

25 / 30

Which is the most common bacterial shape?

26 / 30

Gram-positive bacteria stain:

27 / 30

What kind of immunity is passed from mother to baby?

28 / 30

What is the generation time?

29 / 30

What is the function of the sigma factor in bacteria?

30 / 30

Which of the following is NOT a prokaryote?

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