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Diffusion:
Diffusion describes the spread of particles through random motion from regions of higher concentration to regions of lower concentration. The time dependence of the statistical distribution in space is given by the diffusion equation. The concept of diffusion is tied to that of mass transfer driven by a concentration gradient, but diffusion can still occur when there is no concentration gradient (but there will be no net flux). diffusion is invoked in the Social Sciences to describe the spread of ideas.
Facilitated diffusion:
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is a process of passive transport, facilitated by integral proteins. Facilitated diffusion is the spontaneous passage of molecules or ions across a biological membrane passing through specific transmembrane integral proteins. The facilitated diffusion may occur either across biological membranes or through aqueous compartments of an organism
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∙ 13y ago
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∙ 9y agoMetabolism and respiration are two biological processes in which diffusion plays an important role.
Wiki User
∙ 9y agoPlasmolysis and turgor play important roles in plant cells.
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∙ 10y agometabolism and respiration
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∙ 16y agoRespiration
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In which direction do channels using facilitated diffusion work?
Left
Why isnt cellular energy required for the passenger molecule to be carried across the cell membrane by the carrier molecule?
Because of facilitated diffusion(, which nutralizes it from a higher to a lower concentration.)
How do particles move from an area of high to an area of low concentration?
In cells, diffusion moves by facilitated diffusion, active transport, ABC transporters, group translocation or osmosis. Some of these move molecules from a low concentration to a higher and against the gradient.Simple diffusion moves molecules from a high concentration to a lower concentration.
What is diffusion and facilitated diffusion?
Facilitated diffusion is a process whereby a substance passes through a membrane with a aid of an intermediary or a facilitator. The facilitator is an integral membrane protein that spans the width of the membrane. The force that drives the molecule from one side of the membrane to the other is the force of diffusion. and Diffusion is the process of movement of a substance from the region of higher concentration to the region of lower concentration so as to spread uniformly. Difference : Facilitated diffusion is when polar or charged molecules cross the cell membrane through a trans membrane channel protein. Diffusion is when small, non-polar molecules cross the cell membrane directly through the lipid bilayer. they can do so as they are hydrophobic and hence can pass through the hydrophobic core of the lipid bilayer. crossing the lipid bilayer is difficult for charged/polar particles as they are hydrophilic and large (as they may have hydration shells due to their charged nature), hence they have to cross through transport proteins.
What is the natural tendency of molecules to spread evenly through a room?
Diffusion
Diffusion with a channel protein?
They are the channels by which molecules enter in facilitated diffusion.
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
How does Facilitated diffusion differs from diffusion in that facilitated diffusion?
Facilitated diffusion uses integrated proteins that act as channels for ions or molecules to pass through.
Are aquaporins involved in osmosis or facilitated diffusion?
facilitated diffusion
Three types of passive transport?
There are three forms of passive transport, or the movement of biochemical and other atomic or molecular substances across the cell membranes. They are: osmosis, simple diffusion or facilitated diffusion, and filtration.
What is the difference between diffusion and facilitate diffusion?
The difference between diffusion and facilitated diffusion is that facilitated diffusion is that the molecules pass through special protein channels.
What is the diffusion of water through the cell membrane is called?
Facilitated Diffusion
Is facilitated diffusion active?
No. Facilitated diffusion is a type of passive transport.
Does glucose enters a cell most rapidly by facilitated diffusion?
it enters most rapidly by facilitated diffusion!!
Does osmosis or facilitated diffusion require the presence of membrane channels?
facilitated diffusion
What are the 3 types of diffusion?
simple diffusion, osmosis and facilitated diffusion.
Is osmosis an example of facilitated diffusion or active transport?
No. Facilitated diffusion is an example of passive transport because it does not require the cell to expend energy.
