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Why does evaporation of water have such a powerful
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- What does this indicate? Is ONPG positive or negativeWhen there is a high circulating ADH, what cells become impermeable to water?In IBD1, if 20 mg of a drug is ultimately excreted unchanged into urine, the amount of the drug excreted unchanged into urine after 2 half-lives is _____ mg. Round the answer into the nearest integer.
- How did the cell establish the differential in the shown ion concentrations in the first place?Using the Goldman-Hodgkin-Katz equation, determine what happens to the resting membrane potential if the ECF K+ concentration doubles to 10 mM.The rate at which the Na+K+ pump operates is not constant but is controlled by a combined effect of changes in ICF Na+ concentration and ECF K+ concentration. Do you think the changes in both ICF Na+ and ECF K+ concentration following a series of action potentials in a neuron would accelerate, slow down, or have no effect on the Na+K+ pumps in this cell?
