📚 Cells use diffusion, osmosis, and active transport to move substances.
🌱 Specialized exchange surfaces help facilitate efficient substance exchange.
🌬 Diffusion is the process of particles spreading from high to low concentration.
🔑 Diffusion is the movement of particles down the concentration gradient, allowing substances to pass into or out of cells.
🌬️ Gas exchange in the lungs and movement of carbon dioxide in plants are examples of diffusion.
🚶 Facilitated diffusion involves the use of carrier proteins to move glucose and ions across the membrane.
📚 The movement of water in and out of cells is called osmosis.
⚖️ Water moves from a dilute solution to a more concentrated solution.
🌱 Osmosis can cause plant cells to become turgid or animal cells to burst.
🔬 Cells use osmosis for the movement of gases and water.
⚡ Part 2 explains active transport, which is different from osmosis.
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