O Level Biology Practical

While the examiners can get creative, most practicals revolve around a few "Golden Experiments." You should be able to perform these with your eyes closed:

[State what the results show.] Example: The potato cylinder placed in distilled water increased in mass due to water moving into cells by osmosis. The cylinder in concentrated salt solution lost mass as water moved out. This supports the hypothesis that water moves down a water potential gradient across a partially permeable membrane. o level biology practical

Here’s a structured for an O Level Biology practical. It’s written generically so you can adapt it to a specific experiment (e.g., food tests, osmosis, enzyme activity, leaf starch test, etc.). While the examiners can get creative, most practicals

While the exam changes every year, these concepts appear frequently: Here’s a structured for an O Level Biology practical

To investigate [state the biological question, e.g., the effect of temperature on enzyme activity / the presence of reducing sugars in a food sample / the rate of osmosis in potato cylinders].

Drawings are a major component of the practical. To score full marks, follow the :