Biology 9700/52 Oct Nov 2012 | Cambridge AS Level Past Papers With Mark Scheme

1. Relationship between nitrate concentration and growth of aquatic plants measured by thallus count.
2. Standard deviation analysis to evaluate data variability in plant growth experiments.
3. Preparing serial dilutions for precise concentration measurements in plant growth investigations.
4. Comparison of batch culture and perfusion systems for efficient cell culture, focusing on growth rates, survival, and nutrient levels.
5. Statistical evaluation using t-tests to determine significant differences in cell count between culture systems.
6. Predictive modeling of phosphate concentration effects on aquatic plant growth through experimental design.