Cell transport

Cell transport

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  • Let's understand the difference between Passive and active transport Passive transport as we mentioned before doesn't required any energy of any sort yet Active transport does. Facilitated diffusion is also passive as well as osmosis. The protein pumps loctaed within the cell membrane is a part of active transport.
  • This is how the whole process works. It's really the process of diffusion but it happens in the membrane. Diffusion is the movement of particles down their gradient. A gradient is any imbalance in concentration, and moving down a gradient just means that the particle is trying to be evenly distributed everywhere, like dropping food coloring in water. This is what happened when we made our granola - a bunch of separate ingredients came together and spread out across the whole mixture. We call this evening-out moving “downhill”, and it doesn’t require energy. The molecule most likely to be involved in simple diffusion is water - it can easily pass through cell membranes. When water undergoes simple diffusion, it is known as osmosis.
  • Theres defidently more but we will fianlly know tomorrow when we enter the membrane.
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