O Level Biology Practical 2020 Answers

A staple of the O Level Practical is the low-power or high-power plan drawing of a biological specimen, such as a cross-section of a stem or leaf. :

Use to carefully grasp the banana slice. Ensure the forceps are clean and dry before use. Lift the slice slowly to avoid splashing acid, and gently drain excess acid by holding the slice over the beaker before transferring it to the white tile. Always wear safety goggles and wash hands after handling. o level biology practical 2020 answers

You investigated how temperature affects the release of red pigment from beetroot cells. Higher temperatures generally cause more cell membrane damage, leading to a darker red color in the surrounding water. A staple of the O Level Practical is

Investigating factors affecting catalase or amylase activity. o level biology practical 2020 answers