Biology 9700 Practical Notes

This essay outlines the core competencies and experimental frameworks required for the Biology 9700 Practical (Paper 3)

Improvement: "Use a colorimeter to get quantitative data" or "Use a color standard for comparison." Common Error: "Heat was lost to the environment." biology 9700 practical notes

• Enzyme: a biological molecule that speeds up a chemical reaction
• pH: a measure of the concentration of hydrogen ions in a solution
• Optimum pH: the pH at which an enzyme is most active

Detailed biological drawings are a "make-or-break" feature of the practical. Notes from resources like Studocu and ZNotes highlight these core drawing features: This essay outlines the core competencies and experimental

Practical Procedure:

• Serial Dilution (1:10): 1 cm³ stock + 9 cm³ water. (Good for log graphs).
• Calibration curve: You must change the independent variable (e.g., glucose conc.) and measure the dependent (e.g., colorimeter reading).