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A-LevelBiologyInfectious diseasesMay/June 2025Paper 1 Q371 Mark

A student made notes about two diseases: hand, foot and mouth disease (HFMD) and Lyme disease. HFMD is caused by a viral pathogen and is transmitted in a variety of ways including: • ingestion of water contaminated with faeces • inhalation of droplets containing the pathogen. Lyme disease is caused by a bacterial pathogen and is transmitted by the bite of an infected insect. Which statement makes a correct comparison between the diseases the student wrote about and cholera, malaria or tuberculosis (TB)?

AAntibiotics can be used to kill the vector of the pathogen that causes malaria and the vector of the pathogen that causes Lyme disease.
BHFMD can be transmitted in a similiar way to either cholera or TB.
CThe cells of the pathogen that causes HFMD and the cells of the pathogen that causes TB are prokaryotic.
DTransmission of TB and HFMD could be reduced by chlorinating drinking water.

✓ Correct Answer

The correct answer is B: HFMD can be transmitted in a similiar way to either cholera or TB.

📋 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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This multiple-choice question tests Infectious diseases in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology May/June 2025 examination, Paper 1 Variant 2.

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