Biology 9700/33 May June 2013 | Cambridge AS Level Past Papers With Mark Scheme

1. Identifying biological molecules in solutions through chemical tests, including glucose, starch, and sucrose.
2. Hydrolysis of substrates by enzymes and its verification through reaction observations.
3. Procedure modification to study enzyme activity under different temperature conditions.
4. Plan diagrams of vascular bundles in plant stems, focusing on proportionality and structural details.
5. Flow rate analysis in xylem over 22 hours, supported by graphical representation and trend interpretation.
6. Comparative study of vascular tissue features in plant specimens, highlighting anatomical differences.