Biology 9700/42 Oct Nov 2010 | Cambridge AS Level Past Papers With Mark Scheme

1. Biodiversity benefits, including ecological stability and resource sustainability, with a focus on bird population changes in the Great Lakes region.
2. Antibiotic resistance mechanisms in Pseudomonas aeruginosa, mutation effects on enzymes, and natural selection's role in resistance evolution.
3. Comparisons of IVF and IVM procedures, including risks, costs, and the roles of mitosis and meiosis in oocyte maturation.
4. Insulin regulation of blood glucose, production through genetic engineering, and comparisons of insulin delivery methods (injection vs. inhalation).
5. Adaptations of rice to flooding, nutrient content differences between white and brown rice, and the role of cereals as staple foods.
6. Sickle cell allele frequency in malaria-prone regions, life expectancy variations by genotype, and allele frequency changes in diaspora populations.
7. Auxin's role in apical dominance, experimental evidence of its effects, and calculations of side shoot growth differences.
8. Functions of photosynthetic pigments, differences between cyclic and non-cyclic photophosphorylation, and temperature impacts on photosynthesis.