Biology Immunity PMDC Conceptual Practice
PMDC Verified Question 59 of 99
When T-lymphocytes directly identify antigens on infected host cells or foreign tissue grafts and eliminate them, the process is termed a:
A
Cell-mediated response
B
Humoral immune response
C
Passive immune response
D
Innate mechanical defense
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Cell-mediated response
Concept: Definition of cell-mediated adaptive immunity.

Solution: Direct cell-to-cell interaction where activated T-cells attack foreign cells or intracellular pathogens is defined as a cell-mediated response.

Why other options are incorrect:
  • Option B: Humoral response relies on secreted antibodies binding free antigens in fluids.

  • Option C: Passive responses involve external antibody transfers without T-cell activation.

  • Option D: Mechanical defenses are non-specific physical barriers.

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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