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Through diffusion, or facilitated diffusion via protein channels, or active transport via protein channel pumps (active transport goes against the concentration gradient)
Most cells in our bodies use active transport to maintain electrolytic balances.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoNothing is needed, but the movement of ions across a membrane follows the principle of diffusion - that is, when molecules move from an area of higher concentration to an area of lower concentration to try to balance out the concentration. However, some ions cannot cross the membrane because of their structure, and they may need protein pumps (this requires the cell to expend energy).
Wiki User
∙ 12y agoSodium Ion, Potassium, calcium, hydrogen.
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The carrier protein that transports hydrogen ions across thylakoid membranes and produce ATP acts as both?
The carrier protein that transports hydrogen ions across thylakoid membranes and produce ATP acts as ion channel and an enzyme. The Krebs Cycle is a series of enzyme.
Ions diffuse across membranes down their what?
Its an active transport and use sodium channel generally _____ Diffusion is itself a pathway of travel across a cell membrane. Diffusion can be "simple diffusion" which is simply an ion moving across the membrane anywhere, or "fascilitated diffusion", where an ion moves across the membrane in a specific channel. Either way, diffusion involves the movement of that ion along its concentration gradient and requires no energy. Active transport is not the same as diffusion. Active transport requires energy.
In a cell what produces the charges that provide current?
The cell membrane is selectively permeable to some ions. The differences in the concentrations of specific ions across nerve cell membranes, produces an electrical charge.
What is Chemiosmosis and what is its role in cellular respiration?
movement of ions across a selectively-permeable membrane, down their electrochemical gradient. More specifically, it relates to the generation of ATP by the movement of hydrogen ions across a membrane during cellular respiration
Describe how the diffusion of ions across a cell membrane differs from the diffusion of nonpolar molecules across the cell membrane?
Ions need to be facilitated through a cell membrane because they are passing through a phospholipid bilayer with a hydrophobic interior. Non polar molecules are also hydrophobic, so they can pass through the membrane easily if they are small enough. Ions are polar, so they have a hard time passing through membranes.
What is a bestrophin?
A bestrophin is any of a family of proteins which channel chloride ions across membranes.
What builds up between the two membranes of the mitochondria?
Hydrogen ions build up between the two membranes of the mitochondria. The mitochondria is where cellular respiration occurs as well.
How plasma membrane diffuse across plasma membrane?
Ions can't diffuse across membranes, they must used channels to transport across
What mechanism fails in Cystic Fibrosis patients?
The movement of chloride ions across the cell membranes.
The carrier protein that transports hydrogen ions across thylakoid membranes and produce ATP acts as both?
The carrier protein that transports hydrogen ions across thylakoid membranes and produce ATP acts as ion channel and an enzyme. The Krebs Cycle is a series of enzyme.
The movement of positively charged ions across the membrane of a neuron can produce what?
The movement of positively charged ions across the membrane of a neuron can produce action potential. Electrical potentials are commonly generated across the membranes of neurons as well.
How Cell behavior based on nonlinear dynamic systems?
Movement of ions across cellular membranes is nonlinear because the channels that allow the movement is either on or off. The on and off states form a discontinuous (nonlinear) behavior. Cellular action potential firing is also nonlinear in form, but this is caused by the behavior of the ion channels.
What do sodium potassium pumps pump?
The sodium-potassium pump (PDB entries 2zxe and 3b8e ) is found in our cellular membranes, where it is in charge of generating a gradient of ions. It continually pumps sodium ions out of the cell and potassium ions into the cell, powered by ATP.
How does cystic fibrosis effect the cell membrane?
Cystic fibrosis is caused by defective CFTR protein. CFTR is an ion channel that transports chloride ions across epithelial cell membranes.
Do most animal cell membranes have proteins that pump sodium ions out of the cell and potassium ions into the cell?
Most animal cell membranes have proteins that pump ______ ions out of the cell and potassium ions into the cell
What is true of ions and their transport across cell membranes?
electrical or chemical signals may control the movement of ions across cell membrane
Ions diffuse across membranes down their what?
Its an active transport and use sodium channel generally _____ Diffusion is itself a pathway of travel across a cell membrane. Diffusion can be "simple diffusion" which is simply an ion moving across the membrane anywhere, or "fascilitated diffusion", where an ion moves across the membrane in a specific channel. Either way, diffusion involves the movement of that ion along its concentration gradient and requires no energy. Active transport is not the same as diffusion. Active transport requires energy.
