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What pumps in the cell membrane?
The sodium potassium pump is a form of active transport in which sodium and potassium end up switching places (one into the cell and one leaves the cell). The pump is located in the cell membrane.
What ions are important in muscle contraction and impulse conduction as an action potential reaches a synapse?
In muscle contraction and impulse conduction, important ions include calcium (Ca2+), sodium (Na+), and potassium (K+). Calcium plays a key role in triggering muscle contraction by binding to troponin, sodium influx starts the action potential at the synapse, while potassium efflux helps repolarize the membrane after the action potential passes.
Which two metals explode in water and why?
Sodium and potassium are two metals that can explode in water because they react violently with water to produce hydrogen gas. This reaction is highly exothermic, causing the hydrogen gas to ignite and explode.
What polyatomic ion do all bases end in?
The polyatomic ion we often see in a base is the hydroxide ion, which has OH- as its chemical formula. Some examples of bases are lithium hydroxide, sodium hydroxide, potassium hydroxide and calcium hydroxide. They are written LiOH, NaOH, KOH and Ca(OH)2, respectively.
Why do sodium chloride ions separate in water?
After the sodium chloride dissolves in the water, the mixture can be filtered and the carbon residue then rinsed with clean water and allowed to dry. The sodium chloride will reform as solid crystals after the water has evaporated from the filtrate.
What pumps in the cell membrane?
The sodium potassium pump is a form of active transport in which sodium and potassium end up switching places (one into the cell and one leaves the cell). The pump is located in the cell membrane.
Why are sodium bicarbonate and potassium abnormal in End Stage Renal Disease?
When you understand what happens to the body with ESRD, it will be very clear to you.
How do you determine the end point of titration involving sodium oxalate and potassium permanganate?
The end point of the titration is typically determined by observing a color change. In the case of sodium oxalate and potassium permanganate, the permanganate ion is a deep purple color, and it will turn colorless once it has reacted completely with the oxalate ion. This color change indicates the end point of the titration.
Did Ionic compounds end in what suffix?
Ionic compounds typically end in "-ide" as a suffix for the anion component of the compound. For example, sodium chloride and potassium iodide are common ionic compounds.
Describe the interaction of acetylcholine and calcium ions in stimulating muscle contraction?
The acetylcholine diffuses across the synapse and binds to and activates nicotinic acetylcholine receptors on the motor end plate of the muscle cell. Activation of the nicotinic receptor opens its intrinsic sodium/potassium channel, causing sodium to rush in and potassium to trickle out.
What type of ion channel opening is caused by the binding of neurotransmitters to the receptors on the motor endplate?
Sodium enters the cell and causes depolarization. A small amount of potassium also leaves the motor end plate. This means binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate.calcium
What characteristic electron configuration are shared by Lithum sodium Potassium and Rb?
Lithium, sodium, potassium, and rubidium all belong to Group 1 of the periodic table, known as the alkali metals. They all have one valence electron in their outer energy level, giving them similar electron configurations where the outer electron is in the s orbital. Specifically, their electron configurations end in s¹.
What regulates which substances enter and leave a cell?
The plasma membrane. Carrier proteins and ion channels are parts of the plasma membrane, and aid in diffusion across concentration gradients, as most things don't freely move from one end of the cell membrane to the other. The Sodium-Potassium pump is a major ion channel in the plasma membrane, and regulates the intake of potassium and export of sodium (3 molecules sodium out, 2 molecules potassium in.)
What happens when hydrochloric acid and sodium ethanoate are combined?
When hydrochloric acid and sodium ethanoate are combined, a chemical reaction occurs where hydrogen chloride gas is evolved. This reaction results in the formation of ethanoic acid and sodium chloride. The overall reaction is: CH3COONa + HCl → CH3COOH + NaCl.
What is the difference between end suction pump and horizontal multi stage pump?
what is th different between end suction pump and singl stage pump and multistage pump
What is in the cell membrane that can be opened or close?
There is more potassium inside the cell during a resting period...as an action potential occurs, the cell becomes depolarized, or in other words there is an influx of sodium, allowing the membrane to open. As the action potential comes to an end, the cell repolarizes, meaning the levels of sodium rush outside of the cell again, while the potassium flows back in. As another action potential takes place, this happens over again.
Should you use sodium or potassium salt in your water softener?
Water softeners or whole house water treatment systems use a process called ion exchange to remove minerals from the city or well water that enters the home. This involves passing the water through a tank filled with resin beads that are coated with ions of either sodium or potassium chloride. An ion is an atom or molecule that is electrically charged. In this condition, it is capable of swapping places with certain other molecules in its environment, in this case, the “hard” minerals in the domestic water supply. The water that enters many of our homes is hard because it contains particles of calcium, magnesium and some other minerals. The water treatment system removes most of these minerals and replaces them with either sodium or potassium salt, depending on which type you buy for your water softener. Here are some of the pros and cons to using either type of salt. Sodium Chloride is usually less expensive than Potassium Chloride although the latter is better for the environment when your system discharges the brine solution it uses to recharge the ions on the resin beads. You can arrange to capture the discharge and use it on lawns and gardens since potassium is a key plant nutrient. Contrary to a common misconception, using sodium salt in your water softener will not adversely affect your plumbing. Most modern plumbing is made of PVC plastic and is not affected by increased levels of either sodium or potassium chloride. Sodium salt can, however, reduce the amount of maintenance required for your brine tank. For those concerned about how much sodium is put into the water by a water softener, the answer is, it all depends. The harder your water supply the more sodium ions are needed to soften it. That said, studies indicate that even water softened with sodium chloride has a low concentration of sodium. See this article from the Mayo Clinic for more information: http://www.mayoclinic.com/health/sodium/AN00317 The problem of too much sodium disappears if your water softener includes a reverse osmosis system which removes sodium along with other impurities. Some concern has been expressed in a report from Health Canada about the use of potassium salts in water softeners and the potential health effects for specific segments of the population. For more information go to: http://www.hc-sc.gc.ca/ewh-semt/pubs/water-eau/consultation/potassium/part1-eng.php In the end the choice between sodium or potassium salts in your water softener is a personal one, depending on the presence of potential health issues, cost, environmental priorities and so forth. You can have the hardness of your water tested free of charge by most companies that sell water softeners. Sources: http://watersoftener.wordpress.com/, rainsoftdirect.com/homewatertest.php
