Biology 9700/33 Oct Nov 2014 | Cambridge AS Level Past Papers With Mark Scheme

1. Estimation of sucrose concentration in plant sap using serial dilutions, analysis of drop movement in sucrose solutions, and refinement of concentration estimates.

2. Application of Benedict's test as an alternative method for sucrose concentration measurement in plant sap.

3. Analysis of sap flow rates in aphids across developmental stages, identification of anomalous data, and graphical representation of results.

4. Plan diagrams and detailed cellular drawings of plant stem tissues, emphasizing xylem, pith, and cellular structures.

5. Calculation of actual lengths in photomicrographs using magnification and precise measurements in micrometers.