The history of the OXO cube goes back to 1840, when it was created from an extract of beef to make meat available to those with lower incomes.It is now available in four flavors: beef, chicken, vegetable and lamb.tir the OXO cube in the water until it is dissolved. Sample the stock. If you find the taste is too strong, add more boiling water until it is to your liking. Serve the stock as a hot drink, or add vegetables, meats and other ingredients as you wish to the stock to create soup.
ION CHANNELS. Trafficking of small charged molecules (ions) thru the cell membrane of neurons determine their ability to signal and respond to each other. The electric charges of ions are in fact responsible for the membrane potential and action potential. But since the cell membrane is almost totally impermeable to ions, there is a need to use specialized cellular devices that can transport ions in and out of the cell thru the membrane. These devices are called ion channels.
How do neurons conduct electrical impulses? Neurons conduct electrical impulses by using the Action Potential. This phenomenon is generated through the flow of positively charged ions across the neuronal membrane. I'll explain....... Neurons, like all cells, maintain different concentrations of certain ions (charged atoms) across their cell membranes. Imagine the case of a boat with a small leak below the water line. In order to keep the boat afloat, the small amount of water entering through the leak has to be pumped out, which maintains a lower water level relative to the open sea. Neurons do the same thing, but they pump out positively charged sodium ions. In addition, they pump in positively charged potassium ions (potash to the gardeners out there!!) Thus there is a high concentration of sodium ions present outside the neuron, and a high concentration of potassium ions inside.