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spatial variation of both electrical potential and chemical concentration across a membrane. Both components are often due to ion gradients, particularly proton gradients, and the result can be a type of potential energy available for work in a cell
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∙ 15y ago
Wiki User
∙ 11y agoBy pumping chemical and electrically charged ions out of the cell. This creates a charge variance between the cell, negative, and the exterior, positive./ Work can be done with this charge potential, or co-transport of solutes can be done by the cell with the electrochemical variance.
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∙ 15y agoa spatial variation of both electrical potential and chemical concentration across a membrane
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∙ 13y agoChemiosmotic gradient is what drives the electron transport chain in photosynthesis and cellular respiration. It allows ADP and phosphate to form into ATP.
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∙ 12y agoIt is formed from the ions concentration gradient and the effect of the membrane potential on the ions movement.
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∙ 11y agothe sum of the electrical and chemical gradients for that ion.
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Why is a sodium potassium pump important in organisims?
Na/K ATPase is essential in maintaining the electrochemical gradient across the cell membrane. The electrochemical gradient generated by transporting Sodium out and Potassium in is used in secondary active transport, maintanence of osmotic balance, and most importantly, action potential generation and propagation in muscle and nerve cells.
What does ammonia do in the hill reaction lab?
Ammonia blocks the pathways ability to manufacture ATP, by short circuiting the hydrogen ion gradient, but does not block the production of NADPH + H+.
Why is carbon not found in the electrochemical series?
concerning the absence of carbon on the electrochemical series is for a reason that it can not form salts
A pressure difference is also known as an?
pressure gradient
How do you find the gradient on a contour map?
the ratio between the vertical interval and horizontal equivalent is defined as the gradient.
The speed and direction of ion as they move in and out cell are determined by?
concentration gradient and electrochemical imbalances
Is concentration gradient a form of potential energy?
w hen solute concentrations differ on the two sides of a membrane
What is the difference between diffusion and active transport refer to cell membrane and its properties?
Diffusion requires no energy as it follows the electrochemical gradient. Active transport requires energy (ATP), as it works against the electrochemical gradient.
What is the energy of the hydrogen ion gradient created across the inner mitochondrial membrane use to make?
The hydrogen falls down its electrochemical gradient, from an area of high concentration to an area of lower concentration, through the ATP synthase and provides the force to power this synthase and synthesize ATP.
What is the energy of hydrogen ion gradient created across the inner mitochondrial membrane used to make?
The hydrogen falls down its electrochemical gradient, from an area of high concentration to an area of lower concentration, through the ATP synthase and provides the force to power this synthase and synthesize ATP.
What are the two forces that combine to produce an electrochemical gradient?
Chemical Force & Electrical Force
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.
Is Na K pump active or passive?
In biology, an ion transporter, also called an ion pump, is a transmembrane protein that moves ions across a plasma membrane against their concentration gradient, in contrast to ion channels, where ions go through passive transport.
What is the hydrogen ion gradient maintained by?
Carbon
What is the role of hydrogen ion gradient used for in cellular respiration in the mitochondria?
The hydrogen ion gradient is used to drive ATP synthesis. 32 to 34 molecules of ATP are produced. The hydrogen ion gradient is the result of NADH in the electron transport system of the mitochondria.
What intrinsic protein is responsible for maintaining the H ion gradient?
Proton pumps as well as ATP synthase operating in reverse maintain the hydrogen ion gradient of a cell.
Where do ions diffuse across membrane to specific ion channels?
down their electrochemical gradients.
