Biology 9700/04 Oct Nov 2008 | Cambridge AS Level Past Papers With Mark Scheme

1. Structural distinctions between eukaryotic and prokaryotic cells, focusing on DNA organization and compartmentalization.
2. Conservation strategies for Lycaon pictus, including habitat protection, breeding programs, and genetic diversity maintenance.
3. CFTR protein functions in chloride ion transport, gene mutations causing cystic fibrosis, and therapeutic interventions using gene therapy and PTC124 drugs.
4. Adaptations of sorghum for arid environments, including water conservation mechanisms and hormonal regulation of stomata.
5. Hybridoma method for monoclonal antibody production and applications in cancer treatments like Herceptin, emphasizing receptor targeting and combined therapy efficacy.
6. Roles of FSH and progesterone in the menstrual cycle, their secretion sites, target tissues, and functions in ovulation and uterine lining maintenance.
7. ATP structure, universal role in energy transfer, and sites of synthesis like mitochondria and chloroplasts.
8. Kidney function in ultrafiltration, selective reabsorption, and concentration differences in proteins, glucose, and urea along the nephron.
9. Genetic diagram for inheritance patterns in mice fur and eye pigmentation, including dominance hierarchies of alleles.
10. Calvin cycle dynamics under light and dark conditions, emphasizing RuBP and GP concentration changes and their biochemical implications.