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Introduction to Microbiology

Microbiology

A foundational assessment of microbial biology, structures, and classifications.

science biology microbes

18 Questions Easy Ages 5+ Oct 7, 2026

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About this Study Set

This study set covers Microbiology through 18 practice questions. A foundational assessment of microbial biology, structures, and classifications. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 18 questions from the Introduction to Microbiology study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which of the following is a prokaryotic organism?

A Amoeba
B Bacterium
C Yeast
D Paramecium

2 Which scientist is credited with developing the process of pasteurization?

A Louis Pasteur
B Robert Koch
C Alexander Fleming
D Joseph Lister

3 What is the primary genetic material found in most bacteria?

A RNA
B Protein
C DNA
D Lipids

4 Which structure do bacteria use for locomotion?

A Cilia
B Flagella
C Pili
D Capsule

5 What is the name of the taxonomic kingdom that includes mushrooms and yeasts?

A Protista
B Bacteria
C Fungi
D Archaea

6 Which shape describes a coccus bacterium?

A Spiral
B Rod
C Comma
D Spherical

7 What type of microbe is responsible for the common cold?

A Bacterium
B Virus
C Protozoan
D Algae

8 What is the main component of a bacterial cell wall?

A Cellulose
B Chitin
C Peptidoglycan
D Starch

9 Which instrument is primarily used to view microorganisms?

A Telescope
B Microscope
C Stethoscope
D Periscope

10 What process do many bacteria use to reproduce by splitting into two?

A Binary fission
B Meiosis
C Mitosis
D Budding

11 Which scientist discovered penicillin in 1928?

A Edward Jenner
B Robert Koch
C Alexander Fleming
D Ignaz Semmelweis

12 Where is the DNA typically found in a prokaryotic cell?

A Nucleus
B Nucleoid
C Mitochondria
D Ribosome

13 Which of these is considered a 'beneficial' microbe used in yogurt production?

A E. coli
B Lactobacillus
C Influenza
D Salmonella

14 What is a virus that infects bacteria called?

A Bacteriophage
B Prion
C Viroid
D Pathogen

15 Which microbial structure provides protection against harsh environmental conditions?

A Endospore
B Flagellum
C Cytoplasm
D Ribosome

16 What is the term for a microbe that causes disease?

A Symbiont
B Pathogen
C Probiotic
D Commensal

17 Which kingdom do the single-celled organisms known as protozoa belong to?

A Plantae
B Animalia
C Protista
D Fungi

18 What color do Gram-positive bacteria typically stain under a microscope using a Gram stain?

A Pink
B Red
C Blue
D Purple

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