Biology 9700/36 Oct Nov 2018 | Cambridge AS Level Past Papers With Mark Scheme
1. Emulsion test for detecting lipids in varying ethanol concentrations, evaluating cloudiness to assess lipid presence.
2. Calculating the percentage of unsaturated fat in food samples and visualizing data through bar charts.
3. Plan diagram of leaf-like structures focusing on epidermis, vascular bundles, and tissues with chloroplasts.
4. Detailed drawing of xylem vessel elements, identifying lumens and structural features for water transport.
5. Analyzing mammalian trachea structures via photomicrographs, determining structural ratios and features preventing collapse.

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