Biology 9700/35 Oct Nov 2018 | Cambridge AS Level Past Papers With Mark Scheme

1. Investigating the effect of temperature on enzyme E activity by measuring hydrolysis time in milk at different temperatures.

2. Analyzing the pH effect on enzymatic hydrolysis using buffer solutions and plotting enzyme activity across pH levels.

3. Drawing detailed plan diagrams of plant stem sections, highlighting vascular bundles, xylem, and epidermal tissues.

4. Observing and sketching groups of epidermal cells to study tissue structure and air space presence for aquatic plant adaptations.

5. Calculating the cortex-to-vascular tissue length ratio in photomicrographs of plant stems.

6. Recording observable structural differences between two plant stem specimens and comparing their anatomical features.