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What causes the H ions in the intermembrane space space to move through the channels in the membrane and out into the matrix?
Wiki User
∙ 11y ago
The energy of the high energy molecules used for every time 2 high energy electrons move down the chain causes the H+ ions to move to the matrix.
Mark Greenholt
Wiki User
∙ 9y agoThroughout the build up of ETC H plus ions in the inter-membrane space, the process makes it positively charged. With this, the reverse side of the membrane where the H plus ion was taken from will be negatively charged. This process will let the ions move.
Wiki User
∙ 9y agoThey go where they are not. They are not on the other side of the membrane. So they go there. In fancy words, it is called going down the concentration gradient. It is diffusion.
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Opening sodium channels in the in the axon membrane causes?
Depolarization of the cell membrane. When the sodium channels open there is a rush of sodium ions down their concentration gradient into the cell. As they carry positive charge they reduce the potential difference (inside negative) across the membrane of the neuron.
What part of the muscle cell membrane contain acetylcholine receptors?
When the Ach binds to receptor sites on the muscle cell membrane it causes channels to open and allows Na+ to move into the cell which then causes an action potential.
In what organelle does the electron transport chain function?
The electron transport chain converts energy stored in hydrogen ions and various other substances formed in early cellular respiration to produce high energy ATP in mitochondria. Mitochondria contain both an inner and an outer membrane, and it is along the inner membrane that the actual reactions of the chain occur. Inside the inner membrane a surplus of hydrogen ions is created that produces a concentration gradient across the membrane to the intermembrane space. This gradient causes a force that pushes hydrogen ions out of the innermost matrix and into the intermembrane space. This exchange occurs through special proteins called ATP synthase that convert low energy ADP into high energy ATP whenever a hydrogen ion is sent through one. When all is said and done, the excess electrons and hydrogen are bonded to oxygen to form water molecules.
Does ATP synthase spine like a turbine as H ions pass through it to generate ATP?
The electrochemical gradient of hydrogen in the mitochondrial intermembrane space drives H ions through ATP syntase to ultimately generate ATP. The F0 (pronounced F-naught) region is the part of ATP synthanse that is embedded in the intermembrane, and contains the part often referred to as the rotor or turbine. The binding of H ions to the rotor causes it to spin within the membrane, along with the gamma subunit, which is what causes the conformational changes in the ATP producing area to occur. The passing of the H ions doesn't cause the spin, but as the ions bind to the rotor it does spin (correlation vs. causation).
What causes an action potential when it binds the motor end plate?
Chemically gated sodium channels open up when neurotransmitters bind to receptors in the motor end plate. This causes an action potential along a muscle membrane or nerve cell.
What causes the H ions in the intermembrane space to move through the channels in the membrane and out into the matrixs?
The energy of the high energy molecules used for every time 2 high energy electrons move down the chain causes the H+ ions to move to the matrix.
What causes the h ions in the intermembrane space to move through the channels in the membrane and out the into the matrix?
The energy of the high energy molecules used for every time 2 high energy electrons move down the chain causes the H+ ions to move to the matrix.
What cause the membrane potential of a neuron?
Opening or closing of ion channels at one point in the membrane produces a local change in the membrane potential, which causes electric current to flow rapidly to other points in the membrane.
Opening sodium channels in the in the axon membrane causes?
Depolarization of the cell membrane. When the sodium channels open there is a rush of sodium ions down their concentration gradient into the cell. As they carry positive charge they reduce the potential difference (inside negative) across the membrane of the neuron.
What causes calcium channels in the synaptic knob to open?
depolarization of the presynaptic membrane due to an arriving action potential
Binding of the Acetylcholine to receptors causes a by opening what channels that permit both potassium and sodium to permeate the membrane?
Nicotinic by depolarization
What part of the muscle cell membrane contain acetylcholine receptors?
When the Ach binds to receptor sites on the muscle cell membrane it causes channels to open and allows Na+ to move into the cell which then causes an action potential.
In what organelle does the electron transport chain function?
The electron transport chain converts energy stored in hydrogen ions and various other substances formed in early cellular respiration to produce high energy ATP in mitochondria. Mitochondria contain both an inner and an outer membrane, and it is along the inner membrane that the actual reactions of the chain occur. Inside the inner membrane a surplus of hydrogen ions is created that produces a concentration gradient across the membrane to the intermembrane space. This gradient causes a force that pushes hydrogen ions out of the innermost matrix and into the intermembrane space. This exchange occurs through special proteins called ATP synthase that convert low energy ADP into high energy ATP whenever a hydrogen ion is sent through one. When all is said and done, the excess electrons and hydrogen are bonded to oxygen to form water molecules.
Does ATP synthase spine like a turbine as H ions pass through it to generate ATP?
The electrochemical gradient of hydrogen in the mitochondrial intermembrane space drives H ions through ATP syntase to ultimately generate ATP. The F0 (pronounced F-naught) region is the part of ATP synthanse that is embedded in the intermembrane, and contains the part often referred to as the rotor or turbine. The binding of H ions to the rotor causes it to spin within the membrane, along with the gamma subunit, which is what causes the conformational changes in the ATP producing area to occur. The passing of the H ions doesn't cause the spin, but as the ions bind to the rotor it does spin (correlation vs. causation).
How is an action potential propagated down an axon after voltage-gated sodium channels open in a region of the neuron's membrane?
The entry of sodium ions into the neuron and their diffusion to adjacent areas of the membrane causes those portions of the membrane to become depolarized and results in the opening of voltage-gated sodium channels farther down the axon, which release potassium ions to the outside, returning the charge to its previous state
What causes the rapid change in the resting membranes potential that initiates an action potential?
In muscle cells the inward current is a sodium + calcium flow through acetycholine activated channels as well as through voltage sensitive calcium channels.
What is a voltage-gated membrane channel?
Voltage-gated channels are proteins in the cell membrane which open when stimulated by a voltage (an electrical signal). The voltage causes the channel to open, thereby allowing the entry or exit of whatever substance the channel relates to. An example of this the the voltage-gated sodium channels on neurons. When an action potential (a voltage), passes over the cell, it open these channels and allows sodium to enter the cell.
