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Microbiology

120 questions found

Practice Questions

A microorganism that is typically spherical in shape is called a:

A. Bacillus
B. Coccus
C. Spirillum
D. Vibrio
nmdcat.online BS Nursing
Jun 6, 2026

The phase of bacterial growth where the number of live cells increases exponentially is called the:

A. Lag phase
B. Log (exponential) phase
C. Stationary phase
D. Death phase
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

A nurse is caring for a patient with measles. Measles is a highly contagious disease transmitted via:

A. Direct contact
B. Droplet contact
C. Airborne transmission
D. Fecal-oral route
nmdcat.online BS Nursing
Jun 6, 2026

The outer layer of Gram-negative bacteria, containing lipopolysaccharide (LPS), is called the:

A. Peptidoglycan layer
B. Cell membrane
C. Outer membrane
D. Capsule
nmdcat.online BS Nursing
Jun 6, 2026

A patient is receiving broad-spectrum antibiotics. The nurse should monitor for the development of a superinfection, which occurs when:

A. The patient becomes resistant to the antibiotic.
B. The antibiotic kills beneficial normal flora, allowing opportunistic pathogens to thrive.
C. The infection spreads to other body sites.
D. The patient develops an allergic reaction to the antibiotic.
nmdcat.online BS Nursing
Jun 6, 2026

A nurse is reviewing a patient’s wound culture results, which show the presence of both aerobic and anaerobic bacteria. Anaerobic bacteria are those that:

A. Require oxygen for growth.
B. Cannot grow in the presence of oxygen.
C. Can grow with or without oxygen.
D. Grow only in acidic environments.
nmdcat.online BS Nursing
Jun 6, 2026

The immune response that involves specific lymphocytes (B-cells and T-cells) recognizing and targeting specific pathogens is known as:

A. Innate immunity
B. Adaptive immunity
C. Passive immunity
D. Non-specific immunity
nmdcat.online BS Nursing
Jun 6, 2026
nmdcat.online BS Nursing
Jun 6, 2026

A patient is diagnosed with a viral infection. A common antiviral drug might target the virus’s ability to:

A. Synthesize its cell wall.
B. Replicate its genetic material.
C. Produce bacterial toxins.
D. Carry out metabolic processes.
nmdcat.online BS Nursing
Jun 6, 2026

A microorganism that lacks a true nucleus and membrane-bound organelles is classified as a:

A. Eukaryote
B. Prokaryote
C. Virus
D. Fungus
nmdcat.online BS Nursing
Jun 6, 2026

A patient is prescribed an antibiotic that targets the bacterial cell wall. This mechanism of action is effective because human cells:

A. Also have cell walls that are affected.
B. Have a different type of cell wall.
C. Lack a cell wall.
D. Have a cell membrane that is resistant to the antibiotic.
nmdcat.online BS Nursing
Jun 6, 2026

A patient is infected with a protozoan parasite, such as Giardia. Protozoa are:

A. Unicellular fungi.
B. Multicellular worms.
C. Single-celled eukaryotic microorganisms.
D. Non-living infectious agents.
nmdcat.online BS Nursing
Jun 6, 2026
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