Ultimate Guide to the 2020 O-Level Biology Practical (5090/03)
Must include both the variable name and metric units. Scale: Must occupy more than half of the grid provided. o level biology practical 2020 answers
Candidates typically investigated the breakdown of hydrogen peroxide by the enzyme , often using potato extract or yeast. Ultimate Guide to the 2020 O-Level Biology Practical
It is difficult to judge the exact moment color changes (subjective). It is difficult to judge the exact moment
Ensure the independent variable (e.g., Temperature) is in the first column and include units (e.g., ) only in the headers. Occupy more than half the grid. Use a cross (
In some versions of the 2020 paper, students tested "urine" samples for glucose concentration using the . Time to color change (s) Final Color Estimated Glucose Concentration A Red precipitate High (e.g., 0.62 B Red precipitate Highest (e.g., 0.95 D