Edexcel GCSE Biology Revision Podcast

An audio revision episode covering Edexcel GCSE Biology Topic 1.3 — Movement of Substances Into and Out of Cells. We cover diffusion and the factors that affect it, how to calculate surface area to volume ratios, osmosis in animal and plant cells, the potato cylinder practical, and active transport with its key examples in animals and plants.

An audio revision episode covering Edexcel GCSE Biology Topic 1.2 — Enzymes. We explore what enzymes are and how they work, the factors that affect enzyme activity, digestive enzymes and their roles, how to calculate rates of enzyme activity, and the four key food tests you need to know for your exam.

A focused audio revision session covering Edexcel GCSE Biology Topic 1.1 — Cell Structure. We cover the five kingdoms, the key features of eukaryotic animal and plant cells, the structure of prokaryotic bacteria, and the adaptations of three specialised cells: sperm, egg, and ciliated epithelial cells.