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It depends whether by "channels" you mean channel proteins or ion pumps.
Substances that move through channel proteins do so by facilitated diffusion. This is diffusion, and therefore is passive (it requires no energy input from the cell). It is called facilitated, because the substances cannot pass through the phospholipid bilayer, and so their passage across the membrane is facilitated by the channels.
Ion pumps are different. They move ("pump") a substance against its concentration gradient. This does require a supply of energy, and the cell may supply this by breaking down ATP. The process is called active transport, and can only occur in carrier proteins. Ion pumps are one form of carrier protein.
What else can I help you with?
In the process of electrolysis current can flow through liquid why?
In the process of electrolysis, current can flow through liquid because the liquid contains ions (charged particles) that can carry the electric current. When a potential difference is applied across the electrodes placed in the liquid, the ions move towards the electrodes, allowing the current to flow and chemical reactions to occur.
What is solubility and dissociation in water?
Solubility refers to the maximum amount of a substance that can dissolve in a certain amount of solvent, typically water. Dissociation in water occurs when an ionic compound breaks apart into its individual ions when dissolved in water. This process allows the ions to move freely in solution.
What is the ion release in between cathode and anode?
Ions are released at the anode during oxidation, and they move towards the cathode through the electrolyte. At the cathode, the ions gain electrons and are reduced. This process results in the transfer of ions between the cathode and anode.
Is the tendency of water to move from an area of higher water concentration to one of lower water concentration.?
osmosis. The water moves down an osmotic gradient from a dilute solution of ions to a move concentrated solution through a partially permiable membrane.
H ions move through channels of?
ATP Synthase
What process moves sodium ions?
Sodium ions can be moved across cell membranes through the process of active transport, which utilizes energy from ATP to pump ions against their concentration gradient. Sodium ions can also move through facilitated diffusion, where they move down their concentration gradient with the help of transport proteins.
If you dissolve potassium bromide in water and add electricity What will happen?
If you dissolve potassium bromide in water and add electricity, the water will undergo electrolysis. Potassium ions will move towards the negative electrode (cathode), while bromide ions move to the positive electrode (anode). This process will lead to the decomposition of water into hydrogen gas and oxygen gas at the respective electrodes.
What occurs when ionically bonded electrolytes are added to water.?
When ionically bonded electrolytes are added to water, they dissociate into their constituent ions due to the solvent properties of water. The ions become surrounded by water molecules through a process called hydration. This allows the electrolytes to conduct electricity, as the mobile ions can move freely in the solution.
Can water move through the middle of a membrane?
Yes, water can move through the middle of a membrane through a process called osmosis.
In the process of electrolysis current can flow through liquid why?
In the process of electrolysis, current can flow through liquid because the liquid contains ions (charged particles) that can carry the electric current. When a potential difference is applied across the electrodes placed in the liquid, the ions move towards the electrodes, allowing the current to flow and chemical reactions to occur.
Ionic compounds produce ions in solution by?
dissociating into their component ions when they are dissolved in water. This process separates the positively and negatively charged ions, allowing them to move freely in the solution.
What counteracts the movement of bicarbonate ions from the RBC?
Chloride ions can counteract the movement of bicarbonate ions from red blood cells through a process known as the chloride shift. In this process, chloride ions move into the red blood cells as bicarbonate ions move out, helping to maintain electrochemical equilibrium and prevent excessive accumulation of bicarbonate in the plasma.
Through which process does water move from the ocean to the air?
It is evaporation
Does water cause ionic substances to dissociate?
Yes, water can cause ionic substances to dissociate through a process called hydration or solvation. Water molecules surround and separate the ions in an ionic compound, breaking the ionic bonds and allowing the ions to move freely in solution. This process is important for many chemical reactions and the behavior of electrolytes.
How do water molecules dissolves a salt?
The water molecules move around the salt ions In water, the salt separates into positive and negative ions.
What is the dissocation of CaCl2?
When calcium chloride (CaCl2) dissolves in water, it dissociates into calcium ions (Ca2+) and chloride ions (Cl-). This dissociation process allows the ions to move freely in solution and conduct electricity.
Do ionic compounds dissociate?
Yes, ionic compounds dissociate into their respective ions when dissolved in water or melted. This process allows ions to move freely and conduct electricity.
