GCSE Biology revision collection
Cells and Microscopy
Build a secure understanding of cells, microscopes, movement across membranes, enzymes, cell division and stem cells. Work through the notes in order or choose the idea you need to revise.
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Revision notes
Cells as the Units of Life
Understand cell theory, biological organisation, eukaryotes, prokaryotes and why viruses are different.
Note 1.2Animal and Plant Cell Structures
Learn the structures inside animal and plant cells and connect every structure to its function.
Note 1.3Bacterial and Microbial Cells
Compare bacterial cells with eukaryotic cells and explore binary fission and population growth.
Note 1.4Specialised Cells and Adaptation
Explain how specialised animal and plant cells are adapted to carry out particular functions.
Note 1.5Microscopes and Biological Drawing
Use a light microscope safely, prepare specimens and produce clear scientific drawings.
Note 1.6Size, Scale and Magnification
Calculate magnification and actual size, use scale bars and convert between biological units.
Note 1.7Movement Across Cell Membranes
Compare diffusion, osmosis and active transport, then apply them to cells and practical data.
Note 1.8Biological Molecules and Enzymes
Revise carbohydrates, lipids and proteins, food tests and the factors affecting enzymes.
Note 1.9Cell Division, Growth and Differentiation
Follow the cell cycle, explain mitosis and connect differentiation with growth, repair and cancer.
Note 1.10Stem Cells
Compare embryonic, adult and plant stem cells and evaluate their medical and agricultural uses.