A-LevelBiologyBiological moleculesMay/June 2010Paper 1 Q311 Mark
As a frozen lake warms after a cold winter, mineral nutrients are brought to the surface. Which properties of water contribute to this process? 1 Its greatest density is at 4 °C. 2 It has high specific heat capacity. 3 It is a solvent. 4 Its molecules form hydrogen bonds.
A1 and 3 only
B1 and 4 only
C2 and 3 only
D2 and 4 only
✓ Correct Answer
The correct answer is A. 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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