LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the process that brings LARGE particles INTO the cell through the cell membrane
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The movement of molecules from an area of high concentration (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
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the state where molecules are equally concentrated (balanced) on both sides of the cell membrane.
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the movement of WATER molecules across the cell membrane.
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Detailed explanation-1: -The end result is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions. Not everything can make it into your cells.
Detailed explanation-2: -The electrical potential difference across the cell membrane that exactly balances the concentration gradient for an ion is known as the equilibrium potential. Because the system is in equilibrium, the membrane potential will tend to stay at the equilibrium potential.
Detailed explanation-3: -When the concentration of solute and solvent are equal on both sides of the membrane. It has achieved a state of osmotic equilibrium.
Detailed explanation-4: -There are different types of solutions describing these situations. When the concentration of a solute is equal on both sides of a membrane, the two solutions (inside and outside the membrane) are said to be isotonic.
Detailed explanation-5: -The concentration of solute in the solution can be equal to the concentration of solute in cells. In this situation the cell is in an isotonic solution (iso = equal or the same as normal).