Dallas, TX 75265-0527. This form is to be used for switching from check payments to direct deposit of certain federal. benefits listed in Box C. Use of this form for any other purposes will result in the form being rejected.
In contrast to ADH, which promotes the reabsorption of water to maintain proper water balance, aldosterone maintains proper water balance by enhancing Na+ reabsorption and K+ secretion from extracellular fluid of the cells in kidney tubules.
Na+ is reabsorbed by active transport; electrochemical gradient drives anion reabsorption; water moves by osmosis, following solute reabsorption; conc. of other solutes increase as fluid volume in lumen decreases. Permeable solutes are reabsorbed by diffusion.