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Facilitated diffusion is a process by which substances move across a cell membrane with the assistance of specific proteins. Unlike simple diffusion, which occurs directly through the lipid bilayer, facilitated diffusion relies on transport proteins, such as channels or carriers, to help polar or large molecules pass through the membrane. This process is passive, meaning it does not require energy, as it occurs along the concentration gradient. It's essential for transporting substances like glucose and ions into and out of cells.
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What is the relation between apparent diffusion coefficient and mean diffusivity on DTI?
Apparent diffusion coefficient (ADC) is a measure of water diffusion in all directions, while mean diffusivity is a measure of the average diffusion within a voxel. ADC includes the effects of both isotropic and anisotropic diffusion, whereas mean diffusivity reflects the overall diffusion within the voxel. In DTI, ADC is calculated as the average of the three eigenvalues, which correspond to the three principal diffusion directions and contribute to mean diffusivity.
What role does diffusion play in cellular respiration?
well ask yourself what does diffusion mean and compare it to cellular respiration and photosynthesis
What does the statement diffusion goes from the higher concentration side to the lower concentration side mean?
That partial pressures are the driving force in diffusion.
What is diffusion a natural movement of molecules from?
in the normal diffusion the substance move from the area of greater concentration to that of lower concentration. .... but i never know what do we mean be "faciliated" plz specify
Diffusion of AIDS is an example of which type of diffusion?
Diffusion of AIDS is an example of contagious diffusion, where the disease spreads through direct or indirect contact between individuals.
What is the relation between apparent diffusion coefficient and mean diffusivity on DTI?
Apparent diffusion coefficient (ADC) is a measure of water diffusion in all directions, while mean diffusivity is a measure of the average diffusion within a voxel. ADC includes the effects of both isotropic and anisotropic diffusion, whereas mean diffusivity reflects the overall diffusion within the voxel. In DTI, ADC is calculated as the average of the three eigenvalues, which correspond to the three principal diffusion directions and contribute to mean diffusivity.
What will happen if the net diffusion stopped?
what do you mean
What do you mean by global diffusion of nuclear weapons?
proliferation
What does of fluid diffusion mean?
Hahahahaa i was also looking for that answer....
What role does diffusion play in cellular respiration?
well ask yourself what does diffusion mean and compare it to cellular respiration and photosynthesis
What does cultural diffusion mean in history?
When two cultures blend.
What is definition of diffusion current?
The diffusion current in a metal-semiconductor diode is derived based on the assumption that the depletion layer is large compared to the mean free path, so that the concepts of drift and diffusion are valid.
What is the relationship between the root mean square distance and diffusion in a system?
The root mean square distance is a measure of how far particles move on average in a system. In diffusion, particles move randomly and spread out over time. The root mean square distance increases as diffusion occurs, showing a direct relationship between the two.
How does diffusion effect cells?
I think you mean how does it affect cells but im not sure
What does it mean for a cell to be equilibrium?
It is after diffusion when the number of molecules is equal in all areas.
What are the types of cultural diffusion?
contagious diffusion, relocation diffusion, expansion diffusion, stimulus diffusion, hierarchical diffusion.
The spreading out of a substance from an area of high concentration to an area of low concentration is called .?
diffusion
