Biology Immunity MDCAT 2016
PMDC Verified Question 92 of 99
The type of immunity in which antibodies are passed from one individual to another is called:
A
Passive Immunity
B
Natural Active Immunity
C
Artificial Active Immunity
D
Humoral Immunity
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Passive Immunity
Concept:

The direct transfer of immune components bypasses the need for the recipient to undergo a primary immune response.

Formula:

None

Solution:

  • If a person receives pre-made antibodies (either artificially via injection or naturally via breast milk/placenta), their immune system did not "actively" create them.


  • Because the recipient is entirely passive in the acquisition of these defenses, it is termed Passive Immunity.


Why other options are incorrect:

  • Active Immunity: Always requires the host to be exposed to the antigen and expend energy manufacturing their own antibodies and memory cells.

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