A-LevelBiologyBiological moleculesOct/Nov 2025Paper 1 Q61 Mark
A student carried out four tests for biological molecules. The observations are shown in the table. [Table with columns 'test' and 'observations' and rows iodine: orange, biuret: purple, Benedict's: orange, emulsion: clear] The diagrams show molecules or parts of molecules. [Diagrams of four molecules labelled 1, 2, 3, 4] Which pair is present in the solution?
A1 and 2
B1 and 3
C2 and 3
D3 and 4
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of biological molecules 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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