: Analyzing catalase activity by counting oxygen bubbles from hydrogen peroxide. Improvement
Based on examiner feedback, here are the that lost marks:
You are required to record the colour of the three banana slices at 5, 10, and 20 minutes. The mark scheme is very specific about what constitutes an acceptable colour description. o level biology practical 2020 answers
Calculations required measuring the realistic length of the specimen and including proper units (cm/mm). 2. 5090 Alternative to Practical (Paper 6)
The exact questions vary by regional variant. This article provides the accepted answers for the most common 2020 practical scenarios. : Analyzing catalase activity by counting oxygen bubbles
You were likely given a table of results to plot on a graph.
Remember that consistent practice with past papers—and careful self-assessment using the mark schemes—is the most effective way to prepare for the O Level Biology practical component. Good luck with your studies! Calculations required measuring the realistic length of the
If you are preparing for upcoming practical exams, practicing past papers under timed conditions is the best way to build confidence. Focus heavily on mastering food tests, osmosis potato-strip experiments, and leaf drawing techniques, as these form the bedrock of the Cambridge O Level Biology practical syllabus.