In 750 words: What is the sodium potassium pump, and when is it active?
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http://www.ciss.org.au/documents/LingSodiumPumpMyth1a.html
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KCl(s)  ---->  K+(aq)  +  Cl-(aq)
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Sodium Na+ is a Metal. You will find it in group 1 of the periodic table (same group as Lithium (Li+) and Potassium (K+) just different periods). It is +1 because it has one vacant electron in the outer shell. Very reactive due to this one electron.
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Certain neurotransmitters contain potassium, and the outward rectifier potassium channel genome component acts as a controller or gate for potassium. The fluctuation in potassium-based neurotransmitters can affect excitability in the neurons.
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A. Yes, the use of ATP against the gradient is active\nB. This is diffusion or osmosis\nC. Nope\nD. This is passive transport
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There are potassium ion channel pumps on the cell membrane. This pump pumps out CL ions and bring in K+ ions. It  goes against the flow of diffusion, so energy is needed. When an action potential is created, it oppens Cl- gated channels which, due to the differnt concentrations (more on the outside) the CL rushes back in, creating a change in cell voltage.
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Jaleesa, I think that you can use the same principle that I explained in the earlier question. The Sodium ion has fewer electrons and fewer shells, and is thus smaller than the potassium ion. But I think you should do the rest of your homework yourself.
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Potassium is an electrolyte (a substance that maintains your body's fluid levels), this mineral helps regulate blood pressure and heart function. Research shows that increasing your potassium intake can lower your blood pressure. Those individuals with existing hypertension, as well as those just looking to keep their blood pressure in check, can benefit from potassium.\n\nA Harvard study showed that men who took a potassium supplement with a diuretic decreased their incidence of stroke by 60 percent, compared to men who did not. Potassium neutralizes acids and restores alkaline salts to the bloodstream. Potassium works with sodium in all cells including at nerve synapses to maintain or restore membrane potentials and to assist in metabolic processes. Potassium is critical to our cardiovascular and nerve functioning, regulating the transfer of nutrients into cells and facilitating muscle energy.\n\nPotassium also regulates water balance and assists recuperative powers. Potassium aids rheumatic or arthritic conditions (causing acids to leave the joints and ease stiffness). Potassium is crucial for the elimination of wastes. Potassium is a natural pain desensitizer. Potassium helps control convulsions, headaches and migraines, promotes faster healing of cuts, bruises and other injuries and generally contributes to a sense of well being. Potassium is stored in the muscles.
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muscle that pumps blood
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Sodium and Potassium are correct.  They are extremely reactive with water, forming Hydroxides and releasing Hydrogen gas, which is usually ignited from the exothermic heat of the reaction.\n\n2 Na + 2 H2O -> 2 NaOH + H2\n\n2 K + 2H2O -> 2 KOH + H2
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yes it can...the heart is basically a sodium/potassium pump....too much or too little of these  and other chemicals can cause a series of different types of arrhythmia's...
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Yes, potassium is found in our bodies. It works with sodium to keep our hearts beating normally.  It is also found in animals, and works the same way as in humans.  Plants also use potassium. If you've ever looked at the ingredients on plant food, you'll see that plants need a particular amount of electrolytes to live.
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Homework, huh?\n\nWell, it's because K+ contains more electrons than the Na+. Which means that K+ has 3 layers of electrons (filled in the 1s2 2s2 2p6 3s2 3p6) while while Na+ has only 2 layers of Electrons (1s2 2s2 2p6)
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c. Na - HCO3- reabsorption\nCOnserving FIltered Bicarbonate Ions: bicarbonate reabsorption:\nBicarbonate ions HCO3- are an important part of the bicarbonate bufffer sysem, the most important inorganic blood buffer. If this resevoir of base, or alkaline reserve, is to be maintained, the kidneys must do more than just eliminate enough Hydrogen ions to counter rising blood H+ levels. DEpleted stores of HCO3- have to be replenished. Dissociation of carbonic acid liberates HCO-3 as well as H+. WHile the tubule cells cannot reclaim HCO3- directly from the filtrate, they can and do shunt HCO3- generated within them as a result of H2CO3 splitting into the peritubular capillary blood. Accompanying HCO3- in the blood is the Na+ that enters the tubule cell as H- is pumped out. Thus reabsorption of HCO3- depends on the active secretion of H+ via an H+ -ATPase and more importantly NA+-H+ antiporter, which uses the lumen-to-tubule cell NA+ gradient to drive the transport process. In the filtrate H+ combines with filtered HCO3- generated within the tubule cells enters the blood- a one-for-one exchange. WHen large amounts of H+ are secreted, corresponding large amounts of HCO3- enter the peritubular blood, and the net effect is that HCO3- is almost completely removede from the filtrate.\nAdditional information abou the kidneys********below\nStep 3: TUbular Secretion:\nThe failure of tubule cells to reabsorb some solutes is an important means of clearing plasma of unwanted substances. A second such mechanism is tubular secretion-- essentially reabsorption in reverse. Substances such as H+,K+,NH4+, creatine and certaine organic acids move eithre from the blood of the pertibular capillaries through the tubule cells or directly from the tubule cells in the filtrate, Thus, the urine eventually excreted contains both filtrated and secreted substances. Tubular secretion is important for:\n1. Disposing of substances not already in the filtrate-certain drugs.\n2.ELiminating undesirab;e substances or end products that have been reabsorped by passive processes(urea and uric acid)\n3. Ridding the body of excess K+\n4. Controlling blood ph-----when blood ph drops toward the acidic end of its homeostatic rang the renal tubule cells actively secrete more H+ into the filtrate and retain more HCO3- and K+. as a result the blood pH rises and the urine drains off the excess H+
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potassium supplement used to prevent hypercalemia. hypercalemia can cause sufferers to have heart attacks.
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Drink 15 glasses of water a day, eat bananas & other fruits for the Potassium 2 a day. Fish oil, Sardines Salmon Omega-3's, Magnesium Gluconate- Relaxes arteries,Coenzyme Q 10-nutrient, Walk 30 minutes aerobic 4 times a week,Hawthorn 250 milligrams extract daily and finally Garlic 2 or 3 cloves a day minimum
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Intracellular K+ should be about 140 mM (140 mEq/L)\nExtracellular K+ should be about 4 mM (4 mEq/L)\n\nTherefore, the ratio of intracellular to extracellular is about 35:1