Passive diffusion and facilitated diffusion both involve the movement of molecules across a cell membrane, but they differ in their mechanisms of transport.
Passive diffusion does not require the assistance of transport proteins and relies on the natural movement of molecules from an area of high concentration to an area of low concentration.
Facilitated diffusion, on the other hand, involves the use of specific transport proteins to help molecules move across the membrane, typically from an area of high concentration to an area of low concentration.
In summary, passive diffusion is a simple process driven by concentration gradients, while facilitated diffusion involves the assistance of transport proteins for more efficient movement of molecules.
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Passive transport mechanisms through the cell membrane include simple diffusion, facilitated diffusion, and osmosis. These processes do not require energy input from the cell.
Diffusion, osmosis, and facilitated diffusion do not require energy from the cell as they rely on passive transport mechanisms to move molecules across the cell membrane.
The word that includes diffusion, osmosis, and facilitated diffusion is "passive transport." These are all types of passive transport processes where molecules move across a membrane without the need for energy input.
Osmosis is an example of passive transport, specifically a type of facilitated diffusion. In osmosis, water molecules move across a semipermeable membrane from an area of high concentration to an area of low concentration without the use of energy.
facilitated diffusion