Microbiology Final Exam (AGACNP-C)
2026–2027 | Comprehensive Question
Practice Test with Answers & Rationales|
Free Pdf Access
1. Microbiology is the study of:
A. Human anatomy
B. Microorganisms
C. Plant physiology
D. Animal behavior
Correct Answer: B
Rationale: Microbiology focuses on organisms too small to be seen with the naked eye,
including bacteria, viruses, fungi, and protozoa.
2. Which scientist is known as the "Father of Microbiology"?
A. Alexander Fleming
B. Louis Pasteur
C. Robert Koch
D. Joseph Lister
Correct Answer: B
,Rationale: Louis Pasteur made groundbreaking discoveries in germ theory, pasteurization,
and vaccination.
3. Who developed the first practical microscope used to observe
microorganisms?
A. Antonie van Leeuwenhoek
B. Edward Jenner
C. Florence Nightingale
D. Gregor Mendel
Correct Answer: A
Rationale: Antonie van Leeuwenhoek was the first to observe and describe
microorganisms.
4. Which scientist discovered penicillin?
A. Robert Koch
B. Louis Pasteur
C. Alexander Fleming
D. Joseph Lister
Correct Answer: C
Rationale: Alexander Fleming discovered penicillin in 1928 from the mold Penicillium.
5. The basic unit of bacterial classification is the:
A. Kingdom
B. Family
,C. Species
D. Phylum
Correct Answer: C
Rationale: Species is the fundamental unit used to classify bacteria.
6. Which of the following is a prokaryotic organism?
A. Fungus
B. Protozoan
C. Bacterium
D. Alga
Correct Answer: C
Rationale: Bacteria are prokaryotes because they lack a membrane-bound nucleus.
7. Which structure surrounds the bacterial cell membrane and provides
rigidity?
A. Capsule
B. Cell wall
C. Ribosome
D. Plasmid
Correct Answer: B
Rationale: The bacterial cell wall maintains shape and protects against osmotic pressure.
8. The primary component of bacterial cell walls is:
, A. Cellulose
B. Chitin
C. Peptidoglycan
D. Keratin
Correct Answer: C
Rationale: Peptidoglycan provides strength and structural support to bacterial cell walls.
9. Which bacterial structure is responsible for movement?
A. Pili
B. Capsule
C. Flagella
D. Ribosome
Correct Answer: C
Rationale: Flagella enable bacterial motility.
10. Pili primarily function in:
A. Protein synthesis
B. Cell division
C. Attachment and genetic transfer
D. ATP production
Correct Answer: C
Rationale: Pili help bacteria adhere to surfaces and facilitate conjugation.
2026–2027 | Comprehensive Question
Practice Test with Answers & Rationales|
Free Pdf Access
1. Microbiology is the study of:
A. Human anatomy
B. Microorganisms
C. Plant physiology
D. Animal behavior
Correct Answer: B
Rationale: Microbiology focuses on organisms too small to be seen with the naked eye,
including bacteria, viruses, fungi, and protozoa.
2. Which scientist is known as the "Father of Microbiology"?
A. Alexander Fleming
B. Louis Pasteur
C. Robert Koch
D. Joseph Lister
Correct Answer: B
,Rationale: Louis Pasteur made groundbreaking discoveries in germ theory, pasteurization,
and vaccination.
3. Who developed the first practical microscope used to observe
microorganisms?
A. Antonie van Leeuwenhoek
B. Edward Jenner
C. Florence Nightingale
D. Gregor Mendel
Correct Answer: A
Rationale: Antonie van Leeuwenhoek was the first to observe and describe
microorganisms.
4. Which scientist discovered penicillin?
A. Robert Koch
B. Louis Pasteur
C. Alexander Fleming
D. Joseph Lister
Correct Answer: C
Rationale: Alexander Fleming discovered penicillin in 1928 from the mold Penicillium.
5. The basic unit of bacterial classification is the:
A. Kingdom
B. Family
,C. Species
D. Phylum
Correct Answer: C
Rationale: Species is the fundamental unit used to classify bacteria.
6. Which of the following is a prokaryotic organism?
A. Fungus
B. Protozoan
C. Bacterium
D. Alga
Correct Answer: C
Rationale: Bacteria are prokaryotes because they lack a membrane-bound nucleus.
7. Which structure surrounds the bacterial cell membrane and provides
rigidity?
A. Capsule
B. Cell wall
C. Ribosome
D. Plasmid
Correct Answer: B
Rationale: The bacterial cell wall maintains shape and protects against osmotic pressure.
8. The primary component of bacterial cell walls is:
, A. Cellulose
B. Chitin
C. Peptidoglycan
D. Keratin
Correct Answer: C
Rationale: Peptidoglycan provides strength and structural support to bacterial cell walls.
9. Which bacterial structure is responsible for movement?
A. Pili
B. Capsule
C. Flagella
D. Ribosome
Correct Answer: C
Rationale: Flagella enable bacterial motility.
10. Pili primarily function in:
A. Protein synthesis
B. Cell division
C. Attachment and genetic transfer
D. ATP production
Correct Answer: C
Rationale: Pili help bacteria adhere to surfaces and facilitate conjugation.
