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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.
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What is the difference between passive diffusion and facilitated diffusion?
Passive diffusion is what naturally happens without any assistance of any sort. Facilitated diffusion requires extra energy from extra sources to happen.
Facilitated diffusion depends on?
Facilitated diffusion is a type of active transport that lets certain chemicals into a cell. This process relies on surface proteins.
What macromolecule is involved in facilitated diffusion?
Facilitated diffusion is the process of transporting ions and other chemicals into a cell. The macro molecule involved in this process are proteins.
What is the purpose of facilitated diffusion?
there is no freaking purpose, Biology blows. -___-
What does active transport and facilitated diffusion have in common?
Active transport is when proteins move substances into the cell while expending energy. Facilitated diffusion is the movement of chemicals through a protein into a cell.
Cells take in oxygen by simple diffusion and glucose by facilitated diffusion Therefore oxygen uptake and glucose uptake will differ from each other in all respects except what?
the need for ATP ANSWER Facilitated diffusion and diffusion do differ in ATP requirments
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.
Are aquaporins involved in osmosis or facilitated diffusion?
facilitated diffusion
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.
What statements tells how facilitated diffusion differ from simple diffusion?
Particles move through cell membranes w/out the use of energy by cells.
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!!
What is the diffusion of water through the cell membrane is called?
Facilitated Diffusion
Does osmosis or facilitated diffusion require the presence of membrane channels?
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.
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.
