Exchange and transport mechanisms
For this topic, students must develop a clear understanding of the fundamental principles involved with movement and transport of substances. At level 3, this topic expands significantly beyond the content typically covered in most GCSE specifications and requires more detailed explanations of cell membrane structure and processes such as simple and facilitated diffusion – along with the factors that can affect the rate of these processes.
Understanding of osmosis and active transport is also a requirement for T-Level Science
Students may struggle to categorise the different forms of transport, confuse details of different processes and may harbour some misconceptions from previous study. Establishing some clear and logical ways of thinking e.g. grouping passive and active forms of transport into separate categories and comparing them is likely to aid recall and understanding.
As this topic deals with fundamental aspects of biology, it is important that students do understand the concepts well and can relate them to applied examples.
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 other 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.