O Level Biology Practical 2020: Answers

Use a digital colorimeter to measure light absorbance or transmittance quantitatively. 3. Gas Leakage in Volumetric Setups

remained blue or took the longest (over 120 seconds), indicating it was the "healthy" sample with no glucose. ) showed intermediate results. 2. Biological Drawing & Microscopy o level biology practical 2020 answers

Candidates had to identify data points deviating significantly from the established trend line and suggest human error or equipment limitations as the root cause. Crucial Sources of Error and Improvements Use a digital colorimeter to measure light absorbance

Use a to measure exact volumes (e.g., 4. Pro-Tips for Acing Your Biology Practical Exam o level biology practical 2020 answers