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What exists when no net change in concentration results from diffusion?
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∙ 11y ago
osmosis
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∙ 11y ago
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In an electrode-electrolyte circuit what do the terms drift current and diffusion current mean?
A drift current is electric charges being moved in the presence of an electric field, and a diffusion current is electric charges being moved by a chemical diffusion gradient (where no electric field exists, but where there is a concentration gradient of chemical species driving the current).
What is difusion and osmosis?
Diffusion: When small uncharged particles go through the phospholipid bilayer, it cost no ATP Osmosis: imagine a solution with a bunch of kool aid in it then you place a cell in the glass with only a little kool aid in it the water will rush out of the cell in order to balance out the solution to solute ration.
Name and describe the condition that exists when the diffusion of a particular substance is complete?
Passive Transport (:
Grass growing in a lawnphysical or chemical change?
Grass growing in a lawn is a physical change because the origonal substance still exists. :) good luck!
Is a weak acid similar to a dilute acid?
No. A weak acid is an acid that only partially dissociates in water. A dilute acid is a solution in which an acid, weak or strong, exists in a low concentration in water.
What condition exists when you have a high concentration of molecules in one place and a low concentration of moleculse on an adjacent place?
Diffusion gradient
What is the pressure for diffusion that is produced by the concentration gradient?
Osmotic Pressure. It exists anywhere that there is a soluble substance concentration gradient; that is, not only when a membrane separates substance concentrations. See: Brownian Motion.
What are the conditions that exists when diffusion of a particular substance is complete?
Particles tend to move from an area where they are more concentrated to an area where they are less concentrated, a process known as diffusion. When the concentration of a solute is the same throughout a system, the system has reached equilibrium.
What type of transport is faciliated diffusion?
Neither of these require energy. Diffusion occurs naturally when a higher concentration of a substance exists on one side of a membrane than the other; molecules will enter into the area of lesser concentration until there is an equilibrium on both sides. Active transport requires the energy of the cell.
In an electrode-electrolyte circuit what do the terms drift current and diffusion current mean?
A drift current is electric charges being moved in the presence of an electric field, and a diffusion current is electric charges being moved by a chemical diffusion gradient (where no electric field exists, but where there is a concentration gradient of chemical species driving the current).
What is the a major difference between facilitated diffusion and active transport?
Simple diffusion moves molecules from an area of higher concentration to an area of lower concentration without an input of energy. Facilitated diffusion follows the same rules as regular diffusion (higher to lower concentration and no energy input), but uses protein carrier molecules to allow substances that are fat soluble to diffuse through the cell membrane.
Four of the five answers listed are related by energy requirements. Select the exception. a. active transport b. endocytosis c. diffusion d. exocytosis e. sodium-potassium?
Diffusion requires 0(zero) energy to take place. It does what it does because of a concentration gradient that exists.
What is difusion and osmosis?
Diffusion: When small uncharged particles go through the phospholipid bilayer, it cost no ATP Osmosis: imagine a solution with a bunch of kool aid in it then you place a cell in the glass with only a little kool aid in it the water will rush out of the cell in order to balance out the solution to solute ration.
What condition exists when you have a high concentration of molecules in one place and a low concentration in an adjacent place?
Concentration Gradient
Facilitated diffusion moves large molecules through what?
Glucose and polypeptides.
Name and describe the condition that exists when the diffusion of a particular substance is complete?
Passive Transport (:
What kind of solution exists when the substances dissolved outside the cell are more abundant than those in the cytoplasm?
When solute concentration is higher on the outside of the cell, the cell is said to be in a hypertonic solution. This will result in the diffusion of water from inside the cell to outside the cell.
