Edexcel IAL Biology 6.11 Active and passive immunity

Ask whether antigen exposure activates the person's own lymphocytes or ready-made antibodies are transferred, then identify the natural or artificial route.

Exam points

Classify immunity by antigen exposure, antibody source and memory-cell formation.
Explain natural passive immunity through maternal antibody production and transfer.
Interpret vaccine trial data or error bars to judge whether immunity was stimulated.

[Maximum number: 3]

There are four types of immunity.

Artificial immunity develops when a person is immunised by an injection.

The table gives some statements about artificial immunity.
For each statement, put one cross ∖ in the appropriate box, in each row, to show which statements are correct for the types of artificial immunity.

Table for Question 6.11—Natural, artificial, active and passive immunity question 1 — Edexcel A-Level Biology A2

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6.11—Natural, artificial, active and passive immunity question 1