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GCSE OCR Biology: B2.1 Supplying the cell

All resources for B2.1 Supplying the cell GCSE OCR Biology Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Each PowerPoint is a whole lessons included with student activities and animated answers. * Definition of diffusion from high concentration to lower concentration. * What diffuses in and out of cells. * How the rate of diffusion is affected by distance, surface area, and concentration gradient. * How the human body has adapted to increase the rate of diffusion. * Definition of osmosis. * Explaining water potential and concentration of solution. * How cells change during osmosis - turgid, lysis, crenated, plasmolysed. * Definition of active transport * Key features of active transport * Against concentration gradient. * ATP and respiration * Protein carriers in cell membrane * Active transport in plant cells - root hair cells * Active transport and protein carriers * The cell cycle * DNA replication * Movement of chromosomes * Cytokinesis (cell division) * Growth of daughter cells. * Stem cell donation registration process * Stem cells are undifferentiated cells. * Describe the difference between adult and embryonic stem cells. * Stem cells are found in plant meristems * Explain why stem cells are used in medicine. * Describing the structure of the following cells: * Sperm cell * Fat cell * Red blood cells * Ciliated cells * Palisade cells