MICROBIOLOGY EXAM 1 SAMPLE
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS ALREADY
PASSED!!!
Question 1: Which of the following microorganisms are NOT eukaryotic?
A. Bacteria
B. Yeasts
C. Molds
D. Protozoa
✔✔ Correct Answer: A (Bacteria are single-celled prokaryotes lacking a
membrane-bound nucleus. Yeasts, molds [fungi], and protozoa are all eukaryotes).
Question 2: Which microorganisms are used to make microbiological growth
media (specifically agar, derived from red seaweeds)?
A. Bacteria
B. Fungi
C. Algae
D. Protozoa
✔✔ Correct Answer: C (Agar, the primary solidifying agent in microbiological
culture media, is an extract derived from red algae/seaweed species such as
Gelidium).
Question 3: Which of the following scientists hypothesized that an isolated
bacterial colony arises from a single bacterial cell?
A. Anton van Leeuwenhoek
B. Robert Koch
C. Louis Pasteur
D. Julius Richard Petri
, ✔✔ Correct Answer: B (Robert Koch introduced solid media techniques—
initially using potato slices and gelatin, then agar—hypothesizing that each
discrete colony originates from a single progenitor cell or colony-forming unit).
Question 4: Anton van Leeuwenhoek described the microscopic
microorganisms he observed as:
A. Animalcules
B. Prokaryotes
C. Eukaryotes
D. Protozoa
✔✔ Correct Answer: A (In his classic letters to the Royal Society of London,
Leeuwenhoek termed the moving organisms he observed in pond water and teeth
scrapings "animalcules").
Chapter 1: The laboratory of Robert Koch contributed which of the following to
the field of Microbiology? -ANSWER✔✔1) Simple staining technique
2) use of petri dishes
3) first photomicrograph of bacteria
4) all of the above
D
Chapter 1: Louis Pasteur -ANSWER✔✔Germ Theory of Disease
Germs Cause Disease
Father of Microbiology
Disproved Spontaneous Generation
Chapter 1: Anton Van Leewenhoek -ANSWER✔✔Discoverer of bacteria
Discoverer of Protozoa
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS ALREADY
PASSED!!!
Question 1: Which of the following microorganisms are NOT eukaryotic?
A. Bacteria
B. Yeasts
C. Molds
D. Protozoa
✔✔ Correct Answer: A (Bacteria are single-celled prokaryotes lacking a
membrane-bound nucleus. Yeasts, molds [fungi], and protozoa are all eukaryotes).
Question 2: Which microorganisms are used to make microbiological growth
media (specifically agar, derived from red seaweeds)?
A. Bacteria
B. Fungi
C. Algae
D. Protozoa
✔✔ Correct Answer: C (Agar, the primary solidifying agent in microbiological
culture media, is an extract derived from red algae/seaweed species such as
Gelidium).
Question 3: Which of the following scientists hypothesized that an isolated
bacterial colony arises from a single bacterial cell?
A. Anton van Leeuwenhoek
B. Robert Koch
C. Louis Pasteur
D. Julius Richard Petri
, ✔✔ Correct Answer: B (Robert Koch introduced solid media techniques—
initially using potato slices and gelatin, then agar—hypothesizing that each
discrete colony originates from a single progenitor cell or colony-forming unit).
Question 4: Anton van Leeuwenhoek described the microscopic
microorganisms he observed as:
A. Animalcules
B. Prokaryotes
C. Eukaryotes
D. Protozoa
✔✔ Correct Answer: A (In his classic letters to the Royal Society of London,
Leeuwenhoek termed the moving organisms he observed in pond water and teeth
scrapings "animalcules").
Chapter 1: The laboratory of Robert Koch contributed which of the following to
the field of Microbiology? -ANSWER✔✔1) Simple staining technique
2) use of petri dishes
3) first photomicrograph of bacteria
4) all of the above
D
Chapter 1: Louis Pasteur -ANSWER✔✔Germ Theory of Disease
Germs Cause Disease
Father of Microbiology
Disproved Spontaneous Generation
Chapter 1: Anton Van Leewenhoek -ANSWER✔✔Discoverer of bacteria
Discoverer of Protozoa
