O Level Biology Practical 2020 Answers Better Jun 2026

Students were required to design an experiment to investigate the effect of pH on catalase activity using buffer solutions . 2. Cambridge O Level (Syllabus 5090) - Main Experiments

Observation : The water-bath at 80°C shows the highest intensity of red coloration. o level biology practical 2020 answers

Draw exactly what you see, not a textbook diagram. Ensure the relative sizes of structures (like vascular bundles or seeds) are anatomically accurate. Students were required to design an experiment to

The students had been preparing for weeks, revising the concepts of photosynthesis, and practicing their experimental skills. As they entered the laboratory, they were greeted by the familiar sight of Elodea plants, microscopes, and various equipment needed for the experiment. Draw exactly what you see, not a textbook diagram

Of course, these are just sample answers, and actual answers may vary depending on the specific questions and requirements of the exam.

O-Level Biology Practical 2020: Comprehensive Guide and Answer Analysis

Data: 0.0 M: mass change +12%; 0.2 M: +5%; 0.4 M: 0%; 0.6 M: −6%; 0.8 M: −12%.