O Level Biology Practical 2020 Answers Official

Investigating the breakdown of starch by amylase. Food Tests: Identifying reducing sugars and proteins.

For a setup testing the effect of pH, you would need to use buffer solutions to maintain specific pH levels while keeping temperature and substrate concentration constant. 2. Food Tests & Glucose Concentration o level biology practical 2020 answers

Examine a plant or animal tissue under a microscope, make a large, clear diagram, and calculate magnification. Expected Answers/Methods: Investigating the breakdown of starch by amylase

The 2020 paper required candidates to manage their time efficiently across two main experimental tasks. The exam evaluated core syllabus areas, specifically: make a large

Investigate the effect of different sugar concentrations on potato strips. Expected Answers/Data: