Microbiology Comprehensive Exam
Preparation 2025–2026 – Full Practice
Questions with Answers
Introduction:
This document contains a complete set of microbiology
practice exam questions with correct answers, covering
foundational topics such as microbial cell structure, chemistry,
metabolism, microscopy, taxonomy, and the history of
microbiology. It is designed as comprehensive exam
preparation material aligned with a full microbiology
assessment for the 2025–2026 academic year.
Exam Questions and Detailed Answers:
What surgical practice was established by Lister?
A. Antisepsis
B. Sterilization
C. Chemotherapy
D. Variolation ---Correct Answer---antisepsis
, T or F: Some bacterial cells can convert nitrogen gas (N2) into
ammonia (NH3). ---Correct Answer---True
What are the eukaryotic microorganisms that are also
decomposers? ---Correct Answer---Fungi
What group of microbial agents would be identified by the
work of Ivanowsky and Beijerinck?
A. Fungi
B. Bacteria
C. Viruses
D. Protists ---Correct Answer---Viruses
Which one of the following statements is NOT part of Koch's
postulates?
A. The microorganism and disease can be identified from a
mixed culture.
B. The microorganism must be isolated from a dead animal and
pure cultured.
C. The pure cultured organism is inoculated into a healthy,
susceptible animal.
Preparation 2025–2026 – Full Practice
Questions with Answers
Introduction:
This document contains a complete set of microbiology
practice exam questions with correct answers, covering
foundational topics such as microbial cell structure, chemistry,
metabolism, microscopy, taxonomy, and the history of
microbiology. It is designed as comprehensive exam
preparation material aligned with a full microbiology
assessment for the 2025–2026 academic year.
Exam Questions and Detailed Answers:
What surgical practice was established by Lister?
A. Antisepsis
B. Sterilization
C. Chemotherapy
D. Variolation ---Correct Answer---antisepsis
, T or F: Some bacterial cells can convert nitrogen gas (N2) into
ammonia (NH3). ---Correct Answer---True
What are the eukaryotic microorganisms that are also
decomposers? ---Correct Answer---Fungi
What group of microbial agents would be identified by the
work of Ivanowsky and Beijerinck?
A. Fungi
B. Bacteria
C. Viruses
D. Protists ---Correct Answer---Viruses
Which one of the following statements is NOT part of Koch's
postulates?
A. The microorganism and disease can be identified from a
mixed culture.
B. The microorganism must be isolated from a dead animal and
pure cultured.
C. The pure cultured organism is inoculated into a healthy,
susceptible animal.
