A-LevelBiologyInfectious diseasesFeb/Mar 2023Paper 1 Q371 Mark
What defines infectious diseases?
ASymptoms are caused by a bacterium that passes from contaminated air, soil or water to a host.
BSymptoms are caused by a pathogen that is transmitted from one host to another.
CSymptoms are caused by a microorganism that is carried by a vector.
DSymptoms are caused by a virus that mutates to infect a new species.
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of infectious diseases 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...
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