Biology Immunity NUMS 2024
PMDC Verified Question 66 of 99
During COVID-19 epidemic the plasma of recovered patients was injected in COVID patients. This proved quite effective, which component of plasma do you think was responsible for this?
A
Plasminogen
B
Interferon
C
Antibodies
D
Interleukin-I
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Antibodies
Concept:

Convalescent plasma therapy relies on the principle of artificially acquired passive immunity.

Formula:

None

Solution:

  • When a patient successfully recovers from a virus like COVID-19, their blood plasma is flooded with highly specific neutralizing antibodies (IgG) against the SARS-CoV-2 spike protein.


  • By extracting this plasma and transfusing it into a currently sick patient, the sick patient receives immediate, pre-made immune weapons.


  • These antibodies rapidly bind to and neutralize the virus in the new host, aiding their recovery.


Why other options are incorrect:

  • While plasma contains traces of interferons and interleukins, these degrade quickly. The stable, highly specific, and massively abundant therapeutic agents are the antibodies.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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