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Molecules, atoms, ions, or other small particles of whatever sort are moving all the time; there is random thermal motion even when these particles are part of a larger object which is not moving. These moving particles are constantly bouncing off each other, in perfectly elastic collisions in which no energy is lost, so they just keep moving. The result of this random motion is that a concentration of a substance will gradually spread out, unless it is contained in some manner.
In summery random motion of a substance resulting in movement from area of high to lower concentration.
What else can I help you with?
What type of diffusion helps glucose enter the cell?
facilitated diffusion
When does diffusion occur across a cell membrane?
Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.
What is the primary cause of diffusion?
The primary driving force of facilitated diffusion are surface cell proteins. These proteins transport substances in and out of the cell.
What is the most inefficient cell shape for diffusion?
The most inefficient cell shape for diffusion is a large spherical cell, as it has a small surface area compared to its volume. This results in a slower rate of diffusion as molecules have a longer distance to travel to reach the cell's interior.
What does osmosis have to do with cell membranes?
Osmosis is the water molecules diffusion across the cell membranes. More informations can be find at en.wikipedia.org/wiki/Diffusion
What are the consequences for a cell if it cannot carryout osmosis and diffusion effectively?
The cell will work but not very well because osmosis and diffusion did not occur but sometimes it will work anyways
How are diffusion and facilitated diffusion similar?
Substances enter a cell through the cell membrane
Where diffusion occur?
Diffusion occurs on the cell membrane.
What cell part plays a role in diffusion?
The plasma membrane of a cell plays a role in diffusion.
How does osmosis and diffusion limit the size of a cell?
diffusion and osmosis limit the size of a cell by how fast is can move
What types of transport mechanisms through the cell membrane are passive?
diffusion, facilitated diffusion, and osmosis
How does diffusion help maintain homeostasis?
Diffusion allows the cell to passively transport the waste chemicals out side of the cell so that the cell is not harmed.
What type of diffusion helps glucose enter the cell?
facilitated diffusion
What stops the cell process of diffusion?
What stops the process of diffusion in cells?
What part of the cell controls the diffusion of substances into and out of the cell?
it is the cell wall ! :)
When does diffusion occur across a cell membrane?
Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.
What role did diffusion play in the changes you observed?
Before diffusion there is a higher concentration of oxygen molecules outside the cell than inside the cell. After diffusion the concentration of oxygen molecules is the same outside and inside the cell.
