A-LevelBiologyImmunityOct/Nov 2023Paper 1 Q401 Mark
The diagram shows the simplified structure of an antibody. [Figure 40.1] Which statement is correct?
AU and X allow the antibody to bind to two different antigens.
BV allows the antibody to be flexible to bind to two antigens.
CW can bind to one specific antigen.
DX can bind with a specific phagocyte receptor.
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of immunity within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep