select the correct answer. what is the similarity between simple diffusion and facilitated diffusion?
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Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient. The difference is how the substance gets through the cell membrane. ... Charged or polar molecules that cannot fit between the phospholipids generally enter and leave cells through facilitated diffusion.
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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.
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Whereas facilitated diffusion is a passive process and does not require energy. Active transport uses carrier proteins. Energy is used to change the shape of the carrier protein. ... Active transport is used to transport molecules against their concentration gradient.
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Distinguish between diffusion and equilibrium. Diffusion involves movement of molecules from high to low concentration, when equilibrium has no movement of molecules. ... Nonpolar molecules are also hydrophobic, so they can pass through the membrane easily, if they are small enough.
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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.
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Comparing Facilitated Diffusion and Active Transport. ... This process is called passive transport or facilitated diffusion, and does not require energy. The solute can move "uphill," from regions of lower to higher concentration. This process is called active transport, and requires some form of chemical energy.
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In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.
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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.
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Explanation: Facilitated diffusion is for polar or charged molecules which are relatively small in size, while diffusion is for small particles which are neither polar nor charged that need to cross the cell membrane.
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Answer Expert Verified Correct answer: Diffusion is the movement of particles from a high to low concentration, while osmosis is the movement of water from a high particle concentration to a low particle concentration.
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Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. This is due to the random movement of the molecules. The difference in the concentration of a substance between two areas is called the concentration gradient .
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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.
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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. ... Active transport is the movement of molecules from areas of low concentration to areas where the molecule is found in higher concentration.
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Diffusion is the movement of particles from a high to lower concentration. ... Active transport moves particles from low to higher concentration.
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Simple diffusion and osmosis are in some ways similar. Simple diffusion is the passive movement of solute from a high concentration to a lower concentration until the concentration of the solute is uniform throughout and reaches equilibrium.
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Direction of movement In simple diffusion, the movement of particles occurs along the direction of the concentration gradient. In facilitated diffusion, the movement of molecules can occur both in direction and opposite of the concentration gradient.
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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.