Biology (A) 9BN0/01 May June 2019 | Edexcel A Level Past Papers With Mark Scheme

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1. Photosynthesis and Plant Growth: Light-dependent reactions in chloroplasts, CO₂ concentration effects on plant growth, and factors affecting photosynthesis.

2. Energy Transfer in Ecosystems: Energy flow through trophic levels, respiration losses, efficiency of photosynthesis, and calculating energy transfer percentages.

3. Genetic Variation and Evolution: Identification of new species using DNA profiling, speciation from common ancestors, and genetic differences between populations.

4. Nutritional Biochemistry: Vitamin C content in cooked and uncooked vegetables, determining recommended daily intake, and investigating the effect of cooking on nutrient retention.

5. Forensic Biology and Decomposition: The role of body farms in studying decomposition, effects of temperature on decay rates, and forensic applications in time of death estimation.

6. Antibiotic Resistance and Infection Control: Peptide antibiotics from plants, bacteriostatic mechanisms, infection control in hospitals, and practices to prevent antimicrobial resistance.

Edexcel A Level Biology A (9BN0) Jun 2019

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Classification: Edexcel Paper 1

Page count: 32

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Last update: 2 months ago

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Biology (A) 9BN0/01 May June 2019 | Edexcel A Level Past Papers With Mark Scheme

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