PNB SOLVED QUESTIONS AND
ANSWERS 2025
The classical pathway of the complement system works in tandem with: - Answer - The humoral
response of the specific immune system
Antibodies can neutralize pathogens by: - Answer - Coating the surface of the pathogen in antibodies
Helper T cells receptors are able to respond to antigens presented by - Answer - Dendritic Cells
Co-Stimulation must occur for: - Answer - Clonal expansion of helper T cells
Which cell can provide the best defense against parasites? - Answer - Eosinophils
The characteristic red color that appears during an inflammatory response is caused by? - Answer -
Vasodilation
Too much compliance in the lungs would cause which of the following? - Answer - Decreased expiratory
reserve volume
The increase in resistance of airflow seen in asthma occurs through chronic _________, stimulation
causing constriction of ______ - Answer - Parasympathetic, bronchioles
A person with emphysema has a decreased ability for gas exchange at their respiratory membrane. What
would occur as a consequence? - Answer - Hypercapnia and Acidosis
If the pCO2 in systemic veins is 50mmHg, what will the pCO2 be in pulmonary arteries? - Answer - 50
mmHg
ANSWERS 2025
The classical pathway of the complement system works in tandem with: - Answer - The humoral
response of the specific immune system
Antibodies can neutralize pathogens by: - Answer - Coating the surface of the pathogen in antibodies
Helper T cells receptors are able to respond to antigens presented by - Answer - Dendritic Cells
Co-Stimulation must occur for: - Answer - Clonal expansion of helper T cells
Which cell can provide the best defense against parasites? - Answer - Eosinophils
The characteristic red color that appears during an inflammatory response is caused by? - Answer -
Vasodilation
Too much compliance in the lungs would cause which of the following? - Answer - Decreased expiratory
reserve volume
The increase in resistance of airflow seen in asthma occurs through chronic _________, stimulation
causing constriction of ______ - Answer - Parasympathetic, bronchioles
A person with emphysema has a decreased ability for gas exchange at their respiratory membrane. What
would occur as a consequence? - Answer - Hypercapnia and Acidosis
If the pCO2 in systemic veins is 50mmHg, what will the pCO2 be in pulmonary arteries? - Answer - 50
mmHg
