Osmosis, diffusion and active transport
The movement of molecules is quite abstract and difficult to imagine. This list gives a range of practical demonstrations and investigatiosn for students to carry out.
It is worth remembering that activities need to help students develop an understanding of the processes. The analysis, interpretation and discussion of observations should not be rushed. Time for reflection and checking that learning has taken place should be built into the topic.
These are fundamental concepts in biology and can be revisited and reinforced when they are encountered in other topics.
Whilst this list provides a source of information and ideas for experimental work, it is important to note that recommendations can date very quickly. Do NOT follow suggestions which conflict with current advice from CLEAPSS, SSERC or recent safety guides. eLibrary users are responsible for ensuring that any activity, including practical work, which they carry out is consistent with current regulations related to Health and Safety and that they carry an appropriate risk assessment. Further information is provided in our Health and Safety guidance.