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How is it possible for some molecules to be at equilibrium across a biological membrane and yet not be at the same concentration on both sides?
The equilibrium distribution of a molecule across a membrane depends on concentration and membrane potential. A charged molecule will respond to both components of the electrochemical gradient and will distribute accordingly. K+ ions for example, are at equilibrium across the plasma membrane even though they are 30-fold more concentrated inside the cell. the difference in concentration is balanced by the membrane potential, which is more negative on the inside. The membrane potential opposes the movement of cations to the outside of the cell.
What else can I help you with?
When the molecules on both sides of a cell membrane are in equilibrium what will the molecules do?
If the concentration of molecules on both sides of a membrane is the same, nothing will happen to the molecules. Osmosis only occurs when there is an imbalance of the molecules across the cell membrane.
What is the equilibrium of solute across a membrane?
The equilibrium of solute across a membrane is reached when the concentration of the solute is the same on both sides of the membrane. This means that the movement of the solute molecules is balanced, with an equal number of molecules moving in and out of the membrane. At equilibrium, there is no net movement of solute across the membrane.
Diffusion stops when molecules reach the?
When molecules reach equilibrium, diffusion stops. This occurs when there is an equal concentration of molecules on both sides of the membrane and no net movement.
If the concentrationof molecules on both sides of a membrane is the same the molecules will?
When the concentration of molecules on both sides of a semi permeable membrane are the same, there is no concentration gradient. Therefore, the system is at a state of equilibrium and the molecules remain static
What does facilitated diffusion across a biological membrane require?
Facilitated diffusion across a biological membrane requires specific carrier proteins or channel proteins to help transport molecules across the membrane. These proteins facilitate the movement of molecules down their concentration gradient, from an area of high concentration to an area of low concentration, without the need for energy input.
When the concentration of molecules on both sides of a membrane is the same (equilibrium) the molecules will?
reach dynamic equilibrium. Answer : move across the membrane in both directions (equilibrium).
When the concentration of molecules on both sides of the membrane is the same the molecules will?
reach dynamic equilibrium. Answer : move across the membrane in both directions (equilibrium).
When the molecules on both sides of a cell membrane are in equilibrium what will the molecules do?
If the concentration of molecules on both sides of a membrane is the same, nothing will happen to the molecules. Osmosis only occurs when there is an imbalance of the molecules across the cell membrane.
What is the equilibrium of solute across a membrane?
The equilibrium of solute across a membrane is reached when the concentration of the solute is the same on both sides of the membrane. This means that the movement of the solute molecules is balanced, with an equal number of molecules moving in and out of the membrane. At equilibrium, there is no net movement of solute across the membrane.
What is it called when the concentration of water molecules is the same on each side of the cell membrane?
Equilibrium
What is it called when the concentration of water molecules is the same on each side of cell membrane?
Equilibrium
Diffusion stops when molecules reach the?
When molecules reach equilibrium, diffusion stops. This occurs when there is an equal concentration of molecules on both sides of the membrane and no net movement.
If the concentrationof molecules on both sides of a membrane is the same the molecules will?
When the concentration of molecules on both sides of a semi permeable membrane are the same, there is no concentration gradient. Therefore, the system is at a state of equilibrium and the molecules remain static
According to the rules of osmosis a system will reach a state of equilibrium when there are equal numbers of molecules on both sides of a water-permeable membrane.?
Osmosis involves the movement of water molecules across a semi-permeable membrane from an area of higher concentration to an area of lower concentration. Equilibrium is reached when the concentration of water is the same on both sides of the membrane.
Can passive transport reach equilibrium?
Yes, passive transport can reach equilibrium. In passive transport, molecules move across a membrane without the need for energy input. Once the concentration of molecules is equal on both sides of the membrane, equilibrium is reached and there is no further net movement of molecules.
What happens to a higher concentration of dissolved molecules on one side of a cell membrane during the process of diffusion?
the side of the cell membrane with the higher molecule concentration moves molecules to areas of lower concentration during diffusion until an equilibrium is reached between both sides of the membrane.
What does facilitated diffusion across a biological membrane require?
Facilitated diffusion across a biological membrane requires specific carrier proteins or channel proteins to help transport molecules across the membrane. These proteins facilitate the movement of molecules down their concentration gradient, from an area of high concentration to an area of low concentration, without the need for energy input.
