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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.

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What is a protein moves molecules across a membrane?

Facilitated diffusion moves molecules through cell membranes passively.


What type of transport does a small molecule enter a cell with help from a membrane protein additional energy is needed to complete this process?

Facilitated


What does facilitated mane?

facilitated means to make easier, or help with


Is facilitated diffusion active?

No. Facilitated diffusion is a type of passive transport.


What is the past tense of facilitate?

The past tense of facilitate is facilitated. As in "they facilitated the guests".


Facilitated diffusion required what?

Facilitated diffusion requires membrane proteins


Does facilitated diffusion require the use of energy?

Facilitated diffusion does not require the use of energy.


What is a form of transport that uses transport proteins to move other ions and small molecules across the plasma membrane?

facilitated diffusionfiltration


Does glucose enters a cell most rapidly by facilitated diffusion?

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.


How much ATP does the Facilitated diffusion cost the cell?

Facilitated diffusion is an inactive mode.So no ATP cost.


Is this true that Facilitated diffusion would be used on large molecules?

its false, facilitated diffusion would be used on small molecules


DSM definition of subclinical narcissism facilitated development of scales including the Narcissistic Personality Inventory (NPI; Raskin & Terry, 1988) to assess 'grandiose' narcissism:?

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