Explain why you control pH: "To ensure that only temperature affects enzyme activity, preventing pH from acting as a confounding variable."
The second question usually involves microscopy and biological drawings. Examiners are looking for accuracy and following "The Rules." Important tips to help you ace paper 3 - clearer recording 15 May 2022 — biology 9700 practical notes
The Cambridge International AS & A Level Biology (9700) practical assessments, primarily Paper 3 (AS) and Paper 5 (A2), test your experimental skills rather than just theoretical knowledge . Explain why you control pH: "To ensure that