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Biology · Combined Science

Cell Biology

Spec 4.1 Paper 1 📗 Foundation

Subtopics

Eukaryotes and ProkaryotesSpec 4.1.1.1Compare the key features of eukaryotic and prokaryotic cells, including scale and size. + Animal and Plant CellsSpec 4.1.1.2Describe the sub-cellular structures of animal and plant cells and relate structure to function. + Cell Specialisation and DifferentiationSpec 4.1.1.3Explain how and why cells become specialised, with examples from animals and plants. + MicroscopySpec 4.1.1.5Compare light and electron microscopes, and carry out magnification calculations. + Chromosomes, the Cell Cycle and MitosisSpec 4.1.2.1Describe chromosomes, the stages of the cell cycle and the process and purpose of mitosis. + Stem CellsSpec 4.1.2.3Describe the properties and uses of stem cells, including embryonic, adult and plant meristem cells. + Diffusion, Osmosis and Active TransportSpec 4.1.3Describe and compare the three ways substances move into and out of cells. +

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Key Equations

Magnification = image size ÷ actual size

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