Biology Immunity PMDC Conceptual Practice
PMDC Verified Question 19 of 99
Antiserum is defined as blood serum that contains a high concentration of specific:
A
Antibodies
B
Antigens
C
Toxins
D
Pathogens
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Antibodies
Concept: Passive serum therapy and antisera composition.

Solution: Antiserum is purified blood serum containing pre-formed specific monoclonal or polyclonal antibodies harvested from an immunized donor to provide rapid passive immunity.

Why other options are incorrect:
  • Option B: Antigens trigger an immune response; injecting high levels directly would be harmful or act as a vaccine, not a therapeutic serum.

  • Option C & Option D: Toxins and pathogens are harmful infectious components that antisera are manufactured to neutralize.

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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