Which type of pathogen do interferons defend against?
Bacteria
Parasites
Fungi
Viruses
The Correct Answer is D
A. Bacteria: Interferons are not primarily effective against bacteria; they are specific to viral infections.
B. Parasites: While some immune responses can involve interferons, they are not specifically targeted against parasites.
C. Fungi: Interferons have limited activity against fungal infections, making them less effective compared to their antiviral properties.
D. Viruses: Interferons are proteins produced by virus-infected cells that help to protect neighboring cells from viral infection by enhancing the immune response and inhibiting viral replication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Increased surface tension: This would decrease ventilation as it increases the force needed to expand the lungs.
B. Increased lung compliance: Compliance refers to how easily the lungs can expand. Increased compliance makes it easier for the lungs to inflate, thereby increasing ventilation.
C. Fewer alveolar sacs: Having fewer alveolar sacs reduces the surface area for gas exchange, which would likely reduce ventilation efficiency.
D. More airway resistance: Increased airway resistance makes it harder to breathe, so it would reduce ventilation rather than increase it.
Correct Answer is C
Explanation
A. Calcium: Calcium reabsorption primarily occurs in the distal convoluted tubule, not the loop of Henle.
B. Drugs: Drug secretion mainly happens in the proximal convoluted tubule.
C. Urea: Urea is secreted by the loop of Henle, especially in the thin descending limb, as part of the concentration of urine.
D. Bicarbonate ions: Bicarbonate is reabsorbed mainly in the proximal convoluted tubule, not secreted by the loop of Henle.
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