Biology 0610/63 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Enzyme Activity and Starch Breakdown | Investigating the effect of tea on amylase activity, interpreting iodine test results, and recording time taken for starch breakdown.

2. Experimental Variables and Controls | Identifying independent and controlled variables, explaining the need for a control test, and assessing the accuracy of the experimental method.

3. Biochemical Tests and Practical Skills | Describing the Benedict’s test for reducing sugars and evaluating improvements in enzyme experiments.

4. Microscopy and Measurement | Measuring a villus from the small intestine, calculating actual width using magnification, and comparing structural differences in villi.

5. Nutrient Absorption in Different Species | Analyzing small intestine length in various animals, plotting bar charts, and explaining the relationship between diet and intestinal structure.

6. Scientific Methodology and Data Interpretation | Justifying experimental calculations, improving study designs, and evaluating the significance of body size in digestive efficiency.