A-LevelBiologyImmunity9700/12 · Oct/Nov 2010 · Q381 Mark
The diagram shows the response to a pathogen by the immune system. [Figure 38.1 showing an immune response pathway with P, Q, R, S] Which row correctly identifies P, Q, R and S? P Q R S
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Aantibody T-lymphocyte antigen plasma cell
Bantigen B-lymphocyte antibody memory cell
Cantigen T-lymphocyte antitoxin B-lymphocyte
Dbacteria B-lymphocyte antibody T-lymphocyte
✓ Correct answer
B: antigen B-lymphocyte antibody memory cell
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Immunity and see which topics are most likely to come up next.
Sign up free →