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BIOL 271
BIOL271 / BIOL 271 Module 1: (Latest Update )
Microbiology | Questions & Answers | Grade A | Pass
1. Question: A nurse is educating a patient about hand hygiene to prevent infection. The
nurse explains that microorganisms are too small to be seen without a microscope.
What is the correct term for these organisms?
A. Macrobe
B. Microbe
C. Pathogen
D. Antigen
CORRECT ANSWER: B
Rationale: A microbe is a microscopic organism, such as a bacterium or virus, that can
be spread via contact and is a target of hand hygiene.
2. Question: A nurse is discussing the beneficial roles of microorganisms in a health
class. Which of the following are daily uses of microbes? (Select all that apply.)
A. Production of antibiotics
B. Fermentation in food and beverage production
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C. Causing all infectious diseases
D. Synthesis of vitamins
E. Enzymes in laundry detergents
CORRECT ANSWER: A, B, D, E
Rationale: Microbes are used beneficially in medicine (antibiotics), food production
(fermentation), vitamin synthesis, and industrial processes (enzymes). Not all microbes
cause disease.
3. Question: A new nurse is learning about specialties within microbiology that impact
patient care. Which of the following are key areas of Medical Microbiology? (Select all
that apply.)
A. Chemotherapy
B. Epidemiology
C. Pharmacology
D. Immunology
E. Serology
CORRECT ANSWER: A, B, D, E
Rationale: Medical microbiology includes chemotherapy (antimicrobial treatment),
epidemiology (disease patterns), immunology (immune response), and serology
(antibody testing)—all critical to nursing practice.
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BIOL 271
4. Question: A nursing instructor explains that all cellular life is classified into three
broad domains. Which are the three domains of life?
A. Bacteria, Fungi, Animalia
B. Archaea, Bacteria, Eukarya
C. Prokaryota, Eukaryota, Viruses
D. Plants, Animals, Protists
CORRECT ANSWER: B
Rationale: All cellular organisms belong to one of three domains: Archaea, Bacteria, or
Eukarya. This classification underpins understanding microbial pathogens and human
(Eukarya) biology.
5. Question: To help remember the taxonomic hierarchy, a nursing student uses the
mnemonic "Did King Philip Come Over For Good Soup." What does the 'P' stand for?
A. Phylum
B. Population
C. Protein
D. Pathogen
CORRECT ANSWER: A
Rationale: In taxonomy, the order is Domain, Kingdom, Phylum, Class, Order, Family,
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BIOL 271
Genus, Species. Mnemonics help recall this hierarchy for understanding organism
relationships.
6. Question: A nurse reviews a lab report noting bacteria measuring 5 micrometers.
What is the average size range of a prokaryotic bacterial cell?
A. 0.1 - 1.0 um
B. 2 - 10 um
C. 10 - 100 um
D. 100 - 1000 um
CORRECT ANSWER: B
Rationale: Most prokaryotic cells (bacteria) range from 2 to 10 micrometers in length,
which is relevant for understanding filtration and microscopy in infection control.
7. Question: The nurse is caring for a patient with a bacterial infection. The nurse
understands that the causative agent, a prokaryote, exists as:
A. A multicellular colony
B. A unicellular organism
C. A complex tissue
D. A viral particle
BIOL 271
BIOL 271
BIOL271 / BIOL 271 Module 1: (Latest Update )
Microbiology | Questions & Answers | Grade A | Pass
1. Question: A nurse is educating a patient about hand hygiene to prevent infection. The
nurse explains that microorganisms are too small to be seen without a microscope.
What is the correct term for these organisms?
A. Macrobe
B. Microbe
C. Pathogen
D. Antigen
CORRECT ANSWER: B
Rationale: A microbe is a microscopic organism, such as a bacterium or virus, that can
be spread via contact and is a target of hand hygiene.
2. Question: A nurse is discussing the beneficial roles of microorganisms in a health
class. Which of the following are daily uses of microbes? (Select all that apply.)
A. Production of antibiotics
B. Fermentation in food and beverage production
BIOL 271
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BIOL 271
C. Causing all infectious diseases
D. Synthesis of vitamins
E. Enzymes in laundry detergents
CORRECT ANSWER: A, B, D, E
Rationale: Microbes are used beneficially in medicine (antibiotics), food production
(fermentation), vitamin synthesis, and industrial processes (enzymes). Not all microbes
cause disease.
3. Question: A new nurse is learning about specialties within microbiology that impact
patient care. Which of the following are key areas of Medical Microbiology? (Select all
that apply.)
A. Chemotherapy
B. Epidemiology
C. Pharmacology
D. Immunology
E. Serology
CORRECT ANSWER: A, B, D, E
Rationale: Medical microbiology includes chemotherapy (antimicrobial treatment),
epidemiology (disease patterns), immunology (immune response), and serology
(antibody testing)—all critical to nursing practice.
BIOL 271
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BIOL 271
4. Question: A nursing instructor explains that all cellular life is classified into three
broad domains. Which are the three domains of life?
A. Bacteria, Fungi, Animalia
B. Archaea, Bacteria, Eukarya
C. Prokaryota, Eukaryota, Viruses
D. Plants, Animals, Protists
CORRECT ANSWER: B
Rationale: All cellular organisms belong to one of three domains: Archaea, Bacteria, or
Eukarya. This classification underpins understanding microbial pathogens and human
(Eukarya) biology.
5. Question: To help remember the taxonomic hierarchy, a nursing student uses the
mnemonic "Did King Philip Come Over For Good Soup." What does the 'P' stand for?
A. Phylum
B. Population
C. Protein
D. Pathogen
CORRECT ANSWER: A
Rationale: In taxonomy, the order is Domain, Kingdom, Phylum, Class, Order, Family,
BIOL 271
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BIOL 271
Genus, Species. Mnemonics help recall this hierarchy for understanding organism
relationships.
6. Question: A nurse reviews a lab report noting bacteria measuring 5 micrometers.
What is the average size range of a prokaryotic bacterial cell?
A. 0.1 - 1.0 um
B. 2 - 10 um
C. 10 - 100 um
D. 100 - 1000 um
CORRECT ANSWER: B
Rationale: Most prokaryotic cells (bacteria) range from 2 to 10 micrometers in length,
which is relevant for understanding filtration and microscopy in infection control.
7. Question: The nurse is caring for a patient with a bacterial infection. The nurse
understands that the causative agent, a prokaryote, exists as:
A. A multicellular colony
B. A unicellular organism
C. A complex tissue
D. A viral particle
BIOL 271
