Biology 9700/03 May June 2006 | Cambridge AS Level Past Papers With Mark Scheme

1. Reducing sugar test procedures, including Benedict's test, to identify concentrations in potato, onion tissues, and solutions of known sugar levels.
2. Comparison of reducing sugar levels in solutions (X, Y, Z) and tissue extracts, with observations and concentration ranking for analysis.
3. Standardization methods to ensure fair comparison of reducing sugar tests across samples, emphasizing consistent volumes and conditions.
4. Plan diagram of a stained transverse section of an artery to highlight tissue distribution, with calculated magnification of the drawing.
5. Structural differences between arteries and veins, including wall thickness, lumen diameter, and elastic tissue presence, with functional explanations linked to blood pressure and flow dynamics.