O Level Biology Practical 2020 Answers Jun 2026

: Students performed the Benedict’s test. Successful responses required a structured table with correct headings (e.g., sample name, time taken for color change, and final glucose concentration).

Add equal volume of reagent to sample; for 2–3 minutes.

: Students calculated the magnification using the formula: o level biology practical 2020 answers

Requires ethanol. A positive result shows a cloudy white emulsion. C. Enzyme Investigation (Catalase/Amylase)

Mastering the O-Level Biology Practical exam requires a blend of sharp observation, precise data logging, and solid theoretical knowledge. The 2020 Cambridge O-Level Biology Practical (Component 5090/03) tested students on core biological concepts through hands-on experiments. : Students performed the Benedict’s test

Draw a smooth curve or a straight line; do not connect dots with "dots-and-dashes."

: Common improvements include using a thermostatically controlled water bath for better temperature control. : Students calculated the magnification using the formula:

: Include at least one sector showing the "juicy pulp" (juice sacs).

The Cambridge O Level Biology (5090) practical paper is a critical component that tests a student's hands-on skills, observational abilities, and understanding of experimental design. The —including the May/June series—was unique, often challenging students to adapt their knowledge to specific, often unconventional, laboratory scenarios.

Using "increases," "decreases," or "stays constant" to describe graphs, and quoting data points.

Many students lost marks on the calculation question. The fundamental formula must always be stated: