An action potential involves the transfer SODIUM and POTASSIUM ions across an axon's membrane.
During depolarization, when the ion channels open, they allow the influx of sodium ions into the cell, thus changing the electro-chemical gradient of the cell, in order to counter balance this, potassium ions will be allowed to flow out of the cell.<span />
Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
Plating is a producing procedure wherein a skinny layer of steel coats a substrate. this may be achieved via electroplating, which calls for an electric current, or via electroless plating, which is in the autocatalytic chemical method.
The two techniques have different effects. Coating involves the usage of paint, like a powder-lined end. The process of plating, mainly “electroplating,” includes passing cutting-edge through an electrolyte. It splits and deposits atoms on metallic objects, making them electroplated.
Like plating, the coating is applied to metallic surfaces for protective functions. however, unlike electroplated surfaces, powder-lined surfaces are basically blanketed in paint – not steel.
The plating procedure is a submit-manufacturing system. It involves the coating or overlaying of the surface of a workpiece with a skinny layer of metallic. The simple know-how of Plating to have a thin layer of one steel coating a substrate. therefore, the aim is to enhance the general quality of the product.
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These <span>large leaves of ferns that show multiple venation are called fronds.</span>
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