O Level Biology Practical 2020 Answers
A student tested a solution X. Benedict’s test remained blue. Iodine test turned blue-black. Biuret test remained blue. Ethanol emulsion test remained clear. Identify X.
Practical papers test core lab skills: measurement, observation, experimental design, data handling and interpretation. Below is an engaging, exam-focused blog post that explains likely 2020 O Level Biology practical tasks, shows how to approach them step‑by‑step, and provides clear model answers and marking‑point explanations you can adapt for revision or teaching. o level biology practical 2020 answers
Describe the procedure for the experiment: A student tested a solution X
In the 2020 practical, you were given a slide of a transverse section (e.g., dicot stem or onion root tip). shows how to approach them step‑by‑step