Biology 9700/43 Oct Nov 2015 | Cambridge AS Level Past Papers With Mark Scheme

1. Anaerobic respiration pathways in yeast and muscle cells; compound identification in glycolysis products and differences in end products.

2. Effects of DNP on mitochondrial function; explanations for ATP reduction, increased heat release, and stable oxygen uptake.

3. Immune response mechanisms leading to antibody production; use of monoclonal antibodies for NicVAX vaccination against nicotine.

4. Artificial selection for IPN resistance in salmon; associated challenges like reduced genetic diversity and potential vulnerability to diseases.

5. Genetic screening and gene therapy applications for haemophilia; differences in gene lengths and vector choices impacting treatment success.

6. Biodiversity importance and conservation efforts; comparison of terrestrial and marine habitat protection and biodiversity changes over time.

7. Kidney function in selective reabsorption and aquaporins; effects of dietary protein on urea concentration and nitrogen metabolism.

8. Photosynthesis pigments and action spectra correlations; impacts of accessory pigments on light capture and temperature stress on plant physiology.

9. Genetics of Drosophila phenotypes; methods for genotype determination; genetic crosses demonstrating inheritance of wing, body, and eye traits.

10. Oogenesis and menstrual cycle changes in human females; hybridization-induced polyploidy benefits in wheat; environmental and economic effects of GM herbicide-resistant crops.