What are the four types of passive transport?
Diffusion, Osmosis, Facilitated Diffusion, Diffusion through ion channels
The movement of molecules from an area of higher concentration to an area of lower concentration
What is diffusion driven by?
Diffusion of molecules through a cell membrane depend on what?
size, type, chemical nature of membrane
What is the difference in the concentration across a distance?
Solute transport goes in what direction?
left to right
the movement of solutes is due to what?
Over time diffusion will cause influenced molecules to be in what?
the equal concentration of molecules throughout space
The process by which water molecules diffuse across a cell membrane
What does the direction of Osmosis depend on?
the concentration of solutes on the two sides of the membrane
the concentration of the solute outside the cell is lower than inside the cell
The concentration of the solute is higher outside the cell than inside the cell
Conditions of the solutes inside and outside the cell are equal
The pressure that water molecules exert against the cell wall
When the cells shrink away from the cell walls
Causes the cell to swell and eventually burst
Movements of molecules across the membrane that cannot readily diffuse even when the concentration gradient is present
Each Ion channel is specific for how many types of ions
The gates will open in response for three things?
Stretching the cell membrane, electrical signal, chemical changes