Facilitated diffusion (or facilitated transport) is a process of diffusion, a form of passive transport. Polar molecules and charged ions are dissolved in water but they can not diffuse freely across cell membranes due to the hydrophobic nature of the lipids that make up the lipid bilayers. Only small nonpolar molecules, such as oxygen can easily diffuse across the plasma membrane. All polar molecules should be transported across membranes by proteins that form transmembrane channels. These channels are gated so they can open and close, thus regulating the flow of ions or small polar molecules. Larger molecules are transported by transmembrane carrier proteins, such as permeases that change their conformation as the molecules are carried through, for example glucose or amino acids.
Facilitated diffusion moves molecules through cell membranes passively.
Facilitated
facilitated means to make easier, or help with
No. Facilitated diffusion is a type of passive transport.
The past tense of facilitate is facilitated. As in "they facilitated the guests".
Facilitated diffusion requires membrane proteins
Facilitated diffusion does not require the use of energy.
facilitated diffusionfiltration
No, glucose enters a cell most rapidly through facilitated diffusion with the help of glucose transporters, such as GLUT proteins. Facilitated diffusion allows glucose to move down its concentration gradient into the cell without requiring energy.
Facilitated diffusion is an inactive mode.So no ATP cost.
its false, facilitated diffusion would be used on small molecules
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