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What creates a Na concentration gradient in the proximal tubule?
The Na concentration gradient in the proximal tubule is created by Na+/K+-ATPase pumps on the basolateral membrane actively pumping Na+ out of the cell, generating a low intracellular Na+ concentration. This drives passive reabsorption of Na+ from the lumen of the tubule into the cell down its electrochemical gradient.
There is a greater concentration of na plus and there is a greater concentration of k plus in the cell?
There is a greater concentration of Na plus outside and there is a greater concentration of K plus inside the cell. When the stimulus is delivered, the permeability of the membrane is changed, and Na plus diffuses into the cell, initiating the depolarization of the membrane.
What is the standard concentration of Na OH?
The standard concentration of NaOH is typically 1.0 M for laboratory use.
What best describes the Na plus and K plus concentrations across a neuron's plasma membrane?
Na+ concentration is higher outside the neuron than inside, while K+ concentration is higher inside the neuron than outside. This concentration gradient is maintained by the Na+/K+ pump, which actively transports Na+ out of the cell and K+ into the cell, contributing to the resting membrane potential of the neuron.
What best describes the Na and K concentrations across a neuron's plasma membrane?
The Na concentration is higher outside of the neuron's plasma membrane, while the K concentration is higher inside the neuron's plasma membrane. This creates an electrochemical gradient that allows for the generation and transmission of electrical signals in neurons.
What is the concentration of Na ion that remains in solution after the reaction is complete?
The concentration of Na ion that remains in solution after the reaction is complete is determined by the stoichiometry of the reaction and the initial concentration of Na ions.
What creates a Na concentration gradient in the proximal tubule?
The Na concentration gradient in the proximal tubule is created by Na+/K+-ATPase pumps on the basolateral membrane actively pumping Na+ out of the cell, generating a low intracellular Na+ concentration. This drives passive reabsorption of Na+ from the lumen of the tubule into the cell down its electrochemical gradient.
In a 200-ml sample of 0.030 M Na3P04 what is the concentration of Na plus?
The concentration of Na+ in Na3PO4 is 0.090 M. This is because for every 1 mole of Na3PO4, there are 3 moles of Na+ ions. So in a 0.030 M solution of Na3PO4, the concentration of Na+ is 3 times that, which is 0.090 M.
What sort of ion distributions are established and maintained by Na -K pump activity?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
There is a greater concentration of na plus and there is a greater concentration of k plus in the cell?
There is a greater concentration of Na plus outside and there is a greater concentration of K plus inside the cell. When the stimulus is delivered, the permeability of the membrane is changed, and Na plus diffuses into the cell, initiating the depolarization of the membrane.
What is the standard concentration of Na OH?
The standard concentration of NaOH is typically 1.0 M for laboratory use.
What best describes the Na plus and K plus concentrations across a neuron's plasma membrane?
Na+ concentration is higher outside the neuron than inside, while K+ concentration is higher inside the neuron than outside. This concentration gradient is maintained by the Na+/K+ pump, which actively transports Na+ out of the cell and K+ into the cell, contributing to the resting membrane potential of the neuron.
What is the song that goes Hoo ha hoo ha Na na-na na na na-na na na na-na in the video The Human Ipod?
Best Friend - Toy Box
What best describes the Na and K concentrations across a neuron's plasma membrane?
The Na concentration is higher outside of the neuron's plasma membrane, while the K concentration is higher inside the neuron's plasma membrane. This creates an electrochemical gradient that allows for the generation and transmission of electrical signals in neurons.
What would happen to the equilibrium potential of Na if you change the concentration of K inside the cell?
The equilibrium potential of sodium (Na) is primarily determined by the concentration of Na ions inside and outside the cell, as described by the Nernst equation. Changing the concentration of potassium (K) inside the cell does not directly affect the equilibrium potential of Na. However, alterations in K concentration can influence the overall membrane potential and the activity of sodium channels, which may indirectly affect the dynamics of Na influx during action potentials. Thus, while the Na equilibrium potential remains unchanged, the cell's excitability and response to stimuli could be affected.
What hormone regulates Na plus and K plus ion concentration?
aldosterone
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