what is the difference between diffusion and facilitated diffusion and osmosis?
45510
Facilitated diffusion is the movement of a molecule from an area of high concentration to an area of lower concentration with the help of a protein channel or carrier. ... Osmosis is the diffusion of water through a semi-permeable membrane.
202795
Diffusion is the movement of particles from a high to lower concentration. Osmosis is the diffusion of water across a membrane. Active transport moves particles from low to higher concentration.
228462
In biology, this is a difference between the two processes. One big difference between osmosis and diffusion is that both solvent and solute particles are free to move in diffusion, but in osmosis, only the solvent molecules (water molecules) cross the membrane.
23382
Osmosis: Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. ... Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.
341914
Osmosis is the diffusion (i.e. movement) of a solvent (e.g. water) across a semi-permeable membrane. Dialysis is the separation (i.e. movement) of molecules themselves.
640510
Compare simple diffusion with facilitated diffusion as mechanisms to transport solutes across membranes. the only difference is that simple diffusion will only travel through the phospholipid bilayer and and facilitated diffusion will go only through a non protein channel.
476187
Osmosis is the movement of water molecules through the cell. Diffusion is the movement of molecules, such as oxygen, in and out of a cell. The process by which water molecules are able to diffuse through the cell membrane. The movement of small molecules from a higher concentration to an area of lower concentration.
716164
A. Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.
431109
Facilitated diffusion is a passive process in which membrane channels mediate the transport of polar, or big molecules that are not solvable in the cell membrane. Co-transport, on the other hand, is active transport, as it depends on the electrochemical gradient of ions across the cell's membrane, particularly Na+.
894256
Osmosis is the diffusion of water through semipermeable membranes like the cell membrane. The particles will move from an area of high concentration to an area of low concentration. This direction of movement is described as movement * with * the concentration gradient.
672101
The main difference between the two is that diffusion can occur in any mixture, even when two solutions aren't separated by a semipermeable membrane, whereas osmosis exclusively occurs across a semipermeable membrane. There are actually three types of passive transport processes.
1400780
Facilitated diffusion may or may not require energy from ATP. In simple diffusion, the molecules can pass only in the direction of concentration gradient. In facilitated diffusion, the molecules can pass both in direction and opposite of the concentration gradient.
22333
In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.
712011
Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.
1104043
Transport in cells Osmosis is the diffusion of water across a membrane. Active transport moves particles from low to higher concentration.
450272
No. Osmosis is the diffusion of water across a semipermeable membrane. Isotonic refers to the situation where water on both sides of the membrane has the same concentration of solvents. ... These are known as hypertonic (more solvents, less water) and hypotonic (less solvent, more water) solutions.
1352985
['Simple diffusion – movement of small or lipophilic molecules (e.g. O2, CO2, etc.)', 'Osmosis – movement of water molecules (dependent on solute concentrations)', 'Facilitated diffusion – movement of large or charged molecules via membrane proteins (e.g. ions, sucrose, etc.)']