Biology 9700/34 May June 2024 | Cambridge AS Level Past Papers With Mark Scheme

1. Experimental determination of salicylic acid concentration using proportional dilutions and color intensity evaluation with iron(III) chloride.

2. Preparation and analysis of solutions mimicking biological fluids, focusing on visual interpretation of chemical reactions for quantitative estimation.

3. Assessment of enzyme inhibition by aspirin in reducing inflammation and clotting, linking biochemical pathways to practical pharmacology.

4. Microscopic examination of stained plant tissue sections, emphasizing anatomical differences in vascular bundles and tissue organization.

5. Measurements and calculations of structural ratios in plant sections to analyze growth patterns and anatomical variation.

6. Use of graphical data to estimate salicylic acid concentrations and interpret pharmacokinetics over time, correlating excretion rates with physiological processes.