Question

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Diffusion does not require any addition of ____________ to the molecules, which already have energy in their ____________.Facilitated diffusion is diffusion across a membrane that is aided by transport ____________ . This makes the diffusion ____________ than it would otherwise be.
One form of transport protein is called a channel ____________
Just like a ____________ lets you get into a building or a room, channel proteins can let some ____________ get across a membrane.

Answer 1

Diffusion does not require any addition of energy to the molecules, which already have energy in their kinetic motion. Facilitated diffusion is diffusion across a membrane that is aided by transport proteins. This makes the diffusion easier than it would otherwise be.

One form of transport protein is called a channel protein. Just like a key lets you get into a building or a room, channel proteins can let some molecules get across a membrane.