BIOL 351
BIOL 351 Final Exam (Latest Update ) Pharmacology |
Questions & Answers | Grade A | 100% Correct - Portage Learning
Question 1
Which of the five kingdoms in biological classification includes bacteria?
A. Protista
B. Fungi
C. Plantae
D. Monera
CORRECT ANSWER: D. Monera
Rationale: The Monera kingdom is defined as encompassing prokaryotic
organisms, which include all bacteria. The other kingdoms consist of eukaryotic
organisms.
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Question 2
A nurse is reviewing Koch's postulates with a student. These postulates are best
described as a series of steps for:
A. Classifying different types of microorganisms.
B. Determining the causative agent of a particular disease.
C. Creating a vaccine against a pathogen.
D. Sterilizing medical equipment.
CORRECT ANSWER: B. Determining the causative agent of a particular disease.
Rationale: Koch's postulates are a set of criteria established to establish a causal
relationship between a microbe and a specific disease, forming a cornerstone of
infectious disease microbiology.
Question 3
A nursing student is studying bacterial structures. Which statement about a
bacterial capsule is accurate?
A. It is the outer coat of the endospore.
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B. It is a gelatinous layer external to the cell wall.
C. It is primarily composed of peptidoglycan.
D. It is the site of ATP synthesis.
CORRECT ANSWER: B. It is a gelatinous layer external to the cell wall.
Rationale: The capsule is a discrete polysaccharide or protein layer that lies
outside the cell wall. The endospore coat is a separate, durable structure formed
internally during sporulation.
Question 4
The nurse educator explains that the cytoplasmic membrane of a bacterial cell
has several key functions. Which three are correct? (Select all that apply.)
A. Creates an ionic gradient.
B. Prevents the cell from leaking nutrients.
C. Is the site of protein synthesis.
D. Serves as an anchoring site for proteins.
E. Contains the cell's genetic material.
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CORRECT ANSWER: A, B, D.
Rationale: The cytoplasmic membrane is a selectively permeable phospholipid
bilayer that maintains concentration gradients (A), acts as a permeability barrier
(B), and contains integral and peripheral proteins that serve various functions (D).
Protein synthesis occurs at ribosomes, and genetic material is contained in the
nucleoid.
Question 5
A nurse is reviewing the structure of bacterial cell walls with a preceptee.
Bacterial cell walls are primarily composed of:
A. Cellulose
B. Chitin
C. Peptidoglycan
D. Pseudopeptidoglycan
CORRECT ANSWER: C. Peptidoglycan
Rationale: Peptidoglycan, a polymer of glycan chains cross-linked by peptides, is
BIOL 351