Biology 9700/42 May June 2015 | Cambridge AS Level Past Papers With Mark Scheme

1. Photosynthetic processes in chloroplasts, rubisco enzyme localization, Calvin cycle intermediates, and their roles in carbon fixation.
2. Benefits and challenges of intracytoplasmic sperm injection (ICSI) and molecular distinctions in meiotic stages during oocyte preparation.
3. Hybridization effects on Spartina populations, wind-pollination adaptations, and self-pollination benefits for hybrid population expansion.
4. Conservation strategies for Italian agile frogs, implications of genetic diversity, and environmental selection pressures on foothill versus lowland populations.
5. Pyramidal cell energy allocation for action potential maintenance, calcium ion role in synaptic transmission, and mitochondrial distribution based on energy demands.
6. ATP structural advantages, stages of aerobic respiration, lipid and carbohydrate energy value differences, and respiratory quotient calculations.
7. Genetic inheritance of cat fur color, dominance hierarchy of alleles, and genetic diagram analysis for second-generation phenotypic outcomes.
8. Genetic fingerprinting via electrophoresis, benefits of gene technology in insulin production, and immobilized enzyme applications in glucose testing.