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 of the following is a facultative anaerobe?

2 / 30

Which is the most common bacterial shape?

3 / 30

Which enzyme is responsible for relaxing supercoiled DNA during replication?

4 / 30

Which of the following is NOT a prokaryote?

5 / 30

Koch’s postulates are used to:

6 / 30

Which bacteria lack a cell wall?

7 / 30

Who is considered the father of microbiology?

8 / 30

Which of the following bacteria is acid-fast?

9 / 30

Which process involves the transfer of naked DNA between bacteria?

10 / 30

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

11 / 30

Gram-positive bacteria stain:

12 / 30

Which of the following is a dimorphic fungus?

13 / 30

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

14 / 30

Taq polymerase is used in:

15 / 30

Autotrophic bacteria produce energy through:

16 / 30

CRISPR in bacteria serves as a:

17 / 30

What is the function of the sigma factor in bacteria?

18 / 30

Viroids differ from viruses in that they lack:

19 / 30

A bacteriophage is:

20 / 30

What kind of immunity is passed from mother to baby?

21 / 30

Which technique separates proteins by size?

22 / 30

Which structure is responsible for bacterial motility?

23 / 30

What is the generation time?

24 / 30

The first vaccine was developed against which disease?

25 / 30

Reverse transcriptase is found in:

26 / 30

Endotoxins are found in:

27 / 30

Which medium is selective for Gram-negative bacteria?

28 / 30

What is the main component of bacterial cell walls?

29 / 30

Which structure protects bacteria from phagocytosis?

30 / 30

Which organelle is absent in prokaryotic cells?

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