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Based on the Nernst equation, the equilibrium potential for any ion (Eion) distributed across a membrane is dependent on the internal (Ion_in) and external (Ion_out) concentrations of the ion (in moles or grams/liter), the valence of the ion, z (an integer), the absolute temperature (°K), Faraday’s constant (96,500 coulombs/mole) and […]

Q. 1. Review your iProfile Journal, the dietary reference intake (DRI), and the iProfile Intake Spreadsheet. Does your dietary intake for the day you recorded provide a healthful diet? Why or why not? 2. Did you consume recommended DRI from each of the food groups, vitamins, and minerals? 3. Which […]

1. A highly concentrated solution of salt water is known as sole (pronounced, soh-lay). It is prepared by dissolving large amounts of salt in water until the water is saturated with salt. Explain in detail the properties of water that make it such a good solvent for the salt to […]

Bacterial cells have only one DNA molecule, which is double stranded and is replicated in essentially the same fashion as in eukaryotes. Imagine that, following the techniques of other scientists studying DNA, you created a bacterial cell that contains only radioactive nitrogen in its DNA. You then place the cell […]