Biology 9700/34 Oct Nov 2018 | Cambridge AS Level Past Papers With Mark Scheme

1. Quantifying ascorbic acid concentration in fruit extracts using iodine-starch tests and analyzing endpoint consistency.

2. Constructing and interpreting dilution tables to prepare known ascorbic acid concentrations for comparative analysis.

3. Investigating ascorbic acid's inhibitory effect on amylase activity through mass of maltose produced at varying concentrations.

4. Drawing and labeling transverse sections of plant roots to study tissue structure and calculating vascular tissue ratios.

5. Recording observable differences between root samples by preparing detailed comparative tables.