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What concentration gradients are established and maintained by the sodium-potassium exchange pump?
Wiki User
∙ 12y ago
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
Wiki User
∙ 12y ago
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What is the electrochemical gradient of an ion?
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
What initiates air flow?
Temperature gradients
How does thunder come?
It comes like any other sound. Since lightning displaces a column of gas by turning it into a hot plasma, and it does so very quickly, the sound is very intense. So if the thunder does not originate on very flat land, there will be very many echos that cause it to sound like it "rolls". Even thermal gradients in the air, or density gradients made by falling rain can cause echos.
The weather map shows many pressure gradients close together What things should you take to be prepared for the day's weather?
Tightly-packed isobars portend strong winds (A+) answer a hat or scarf because of high winds
Weather maps show all the following except what?
Weather maps show various facts regarding the weather of a particular place including patterns of high and low pressure, temperature gradients, wind speed, and much more.
What concentration gradients are established and maintained by the sodium potassium exchange pumps?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
How are concentration gradients maintained for diffusion?
Passive transports such as diffusion and osmosis move down their concentration gradients.
What are concentration gradients?
Concentration gradients is a solutes. This is used in the body.
What concentration gradients are established and maintained by the sodium-potassium pump?
high Na+ concentration in the extracellular fluid; high K+ concentration in the cytoplasm
In what direction do particles natural diffuse?
Down concentration gradients.
How are the concentration gradients in the alveoli maintained?
The heart is constantly pumping blood around the body. blood entering the lungs is deoxygenated and high in C02 The air in the alveoli has a high oxygen concentration and in comparison is low in C02 This sets up a concentration gradient. This causes oxygen to diffuse into the RBC and C02 to diffuse out in order to try balance the concentration. This balance is maintained by breathing, taking away the C02 in the lungs and bringing in fresh O2 and the constant pumping of blood, bringing more deoxygeneate blood into the lungs
What is the pumping of materials across a membrane against their concentration gradients?
Active Transport
Why would a cell need active transport?
To transport protein to specific areas of the cell, e.g. the synaptic terminal of a neuron's axon; and to transport ions & chemicals against their concentration gradients
What are osmotic gradients?
When water flows from areas of high concentration to areas of low concentration through semi-permeable membranes; down it'd concentration gradient.
Which process uses proteins to move molecules against a concentration gradients?
active transport
Do greatest changes in weight occur in cells with steepest concentration gradients?
Yes, it does. Because the rate and the concentration are equally related, the biggest the difference in concentration the grater the rate of change of this concentration (osmosis)
Diffusion is important in body fluids because it tends to?
It tends to eliminate local concentration gradients.
