For the 2020 series, both of these papers were published, providing a comprehensive view of the year's intended practical assessment.
Always double-check that your measurements have correct units attached ( cm3cm cubed
The practical exam in 2020 tested students on their understanding of biological techniques, including enzyme action, food tests, microscopy, and environmental factors impacting plants. o level biology practical 2020 answers
: This section often involved the detailed drawing and labeling of biological specimens, such as a lime fruit or specific flower parts .
Magnification=Length of drawingLength of actual specimenMagnification equals the fraction with numerator Length of drawing and denominator Length of actual specimen end-fraction Answers were expected to be given to . For the 2020 series, both of these papers
The experiment involved three treatments: a banana slice dipped in to lower the pH, a slice cut into small pieces to increase surface area, and an untreated slice as a control.
A major component of the 2020 exam involved investigating the effect of a specific variable (such as temperature, pH, or substrate concentration) on enzyme activity. A common variant of this paper used (from potato or liver discs) reacting with hydrogen peroxide, or amylase reacting with starch. Sample Experimental Setup A common variant of this paper used (from
This question tests your ability to use universal indicator paper correctly and record a value.
If asked to modify or design an experiment to test the effect of temperature on enzyme activity, your answer must include:
The 2020 O Level Biology Practical (6093/3) focused on food tests, including Benedict’s solution, biological drawings, and comparative studies of flower adaptations. Key experiments involved calculating glucose concentrations and investigating the impact of temperature on membrane permeability in beetroot. For comprehensive recommended answers, visit 2020 O' Levels 6093/3 - Recommended Answers | PDF - Scribd
flowers have pendulous stamens to easily release pollen into the wind. Resources for Full Papers