A-LevelBiologyBiodiversity and conservationOct/Nov 2013Paper 1 Q391 Mark
Which events can occur in the nitrogen cycle? 1 Inorganic nitrogen in the atmosphere undergoes denitrification by specific prokaryotes. 2 Nitrate concentrations in the soil are increased by nitrifying bacteria in waterlogged soil. 3 Organic nitrogen in legumes passes into the soil where deamination and ammonification occurs. 4 Saprotrophic fungi living in the soil decompose organic nitrogen in faeces.
A1 only
B2 only
C1 and 4
D3 and 4
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of biodiversity and conservation 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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