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What is the transport that moves a solute down the concentration gradient?
Simple diffusion
How can you use diffusion in a sentence?
Diffusion of the solute across the membrane was observed. The solute traveled from an area of high concentration to an area of low concentration, this is known as diffusion.
What is the eventual result of diffusion describe concentration prior to and at this point?
The eventual result of diffusion is equilibrium. The concentrations prior to this point would be uneven. The solutes then diffuse from areas of high solute concentration to areas of low solute concentration. After diffusion, at equilibrium, the concentration will be even in different areas.
What role do carrier protiens play in facilitated diffusion?
facilitated diffusion is also called cell-mediated diffusion because a substance transport in this manner diffuses through the membrane using a specific carrier protein to help.first, carrier protein binds to the binding site of the carrier protein ,and then there is a conformational change in the shape of the carrier protein that helps the molecule to diffuse other side of the membrane.
Which term refers to the diffusion of water molecules through a slestively permaeable membrane?
The movement of water through a selectively permeable membrane is called diffusion. Water will always diffuse down a concentration gradient, from high solute concentration to low solute concentration.
What is the transport that moves a solute down the concentration gradient?
Simple diffusion
What does facilitated diffusion not require?
Passive diffusion occurs when you have unequal concentrations of solutes on either side of a permeable membrane, therefore facilitated diffusion shouldn't require a difference in solute concentration to drive it.
What is the difference between facilitates diffusion and solute pumping?
Facilitated diffusion is an example of passive transport, while solute pumping is an example of active transport. This means that facilitated diffusion does not require the use of energy, while solute pumping does. Sometimes, certain particles are either too big or lipid insoulble to pass through the cell membrane. Therefore, they need a protein carrier which acts like a tunnel. This allows these particles to pass through the cell membrane. However, solute pumping is when amino acids, some sugars, and ions are transported b solute pumps. Also, ATP energizes during solute pumping. Facilitated diffusion is an example of passive transport, while solute pumping is an example of active transport. This means that facilitated diffusion does not require the use of energy, while solute pumping does. Sometimes, certain particles are either too big or lipid insoulble to pass through the cell membrane. Therefore, they need a protein carrier which acts like a tunnel. This allows these particles to pass through the cell membrane. However, solute pumping is when amino acids, some sugars, and ions are transported b solute pumps. Also, ATP energizes during solute pumping.
How is facilitated diffusion different from passive transport?
Mediated Transport has an extra step of binding to a carrier protein, while Passive transport does not bind to a protein. Both of them however, move along the concentration gradient (High--> Low)
How can you use diffusion in a sentence?
Diffusion of the solute across the membrane was observed. The solute traveled from an area of high concentration to an area of low concentration, this is known as diffusion.
What is the eventual result of diffusion describe concentration prior to and at this point?
The eventual result of diffusion is equilibrium. The concentrations prior to this point would be uneven. The solutes then diffuse from areas of high solute concentration to areas of low solute concentration. After diffusion, at equilibrium, the concentration will be even in different areas.
What is the movement of water through a selectively permeable membrane?
The movement of water through a selectively permeable membrane is called diffusion. Water will always diffuse down a concentration gradient, from high solute concentration to low solute concentration.
What role do carrier protiens play in facilitated diffusion?
facilitated diffusion is also called cell-mediated diffusion because a substance transport in this manner diffuses through the membrane using a specific carrier protein to help.first, carrier protein binds to the binding site of the carrier protein ,and then there is a conformational change in the shape of the carrier protein that helps the molecule to diffuse other side of the membrane.
How do transport proteins move substances across membranes?
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is a process of passive transport, facilitated by integral proteins. Facilitated diffusion is the spontaneous passage of molecules or ions across a biological membrane passing through specific transmembrane integral proteins. The facilitated diffusion may occur either across biological membranes or through aqueous compartments of an organism.*This is from Wikipedia.....
Why is facilitated diffusion faster than simple diffusion?
Facillatated diffusion is faster than simple diffusion when solute concentration is low because it uses channels to transport molecules throught the lipid bilayer. Simple diffusion depends upon concentration gradients so the net movement of diffusing molecules depends on the concentration gradient, thus the rate of diffusion is directly proportional to the concentration gradient. Simple diffusion is also a type of passive transport, which requires no energy input, whereas facilitated diffusion is protein mediated transport. Passive diffusion of solute into a cell is linearly related to the concentration of solute outside the cell. Carrier proteins increase the rate of diffusion by allowing more solute to enter the cell. Facilitated diffusion, however, approaches a maximum rate as the carrier proteins become saturated with solute.
Which of these nephron transport processes does not show saturation at high solute values a. coupled cotransport b. facilitated diffusion c. active transport d. simple diffusion?
d. simple diffusion
What types of solute molecules may be moved by facilitated diffusion?
Many polar molecules and ions with the assistance of transport proteins.
