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Osmosis and tonicity. Hypertonic, isotonic, and hypotonic solutions and their effect on cells.
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Khan Academy
Learn about the different types of cell transport, such as diffusion, osmosis, passive transport, and active transport. Test your knowledge with quizzes and exercises on the plasma membrane, fluid mosaic model, and bulk transport.
In an isotonic solution, there is no net flow of water, keeping the cell stable. In a hypertonic solution, water leaves the cell, causing it to shrivel. These reactions are due to the semipermeable nature of cell membranes and the concentration of solutes.
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Learn biology through topics like biochemistry, cell biology, genetics, evolution, and ecology with this free online course. Test your knowledge with quizzes, unit tests, and worked examples of AP® Biology free response questions.
Your cells are bustling hubs of activity! Every second, substances are being transported across membranes, molecules are being built up and broken down, and enzymes are catalyzing chemical reactions. In this unit, learn about these activities and how they come together to help cells carry out cellular respiration and photosynthesis, two of the most important biological processes on Earth.
Video educativo sobre soluciones hipotónicas, isotónicas e hipertónicas y su efecto en las células.