Biology 5090/31 Oct Nov 2024 | Cambridge O-Level Past Papers With Mark Scheme
CIE
O-Level
Biology (5090)
Nov
2024
1. Yeast Respiration & Sugar Substitutes | Investigating Gas Production – Measuring yeast activity with sugar and substitutes, recording gas levels, and analyzing respiration rates.
2. Aerobic Respiration in Seeds | Oxygen Uptake Measurement – Using a respirometer to track oxygen consumption, plotting results, and calculating respiration rates.
3. Dandelion Seed Adaptations | Wind Dispersal Mechanisms – Drawing a detailed seed structure, measuring its length, and explaining adaptations for wind dispersal.
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Laura Bellini 
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