The thick ascending limb of nephron loop: Multiple Choice   has many aquaporins that allow the osmosis of water into the salty medullary fluid   maintains an osmotic gradient by pumping Na+  and Cl- from the interstitial fluid into the epithelial cell     uses a cotransporter to bring Na+, K+ and Cl- from the tubular fluid into the epithelial cell   uses a Na/K/Cl exchanger to move Na+ and Cl- from the epithelial cell into the interstitial fluid

Sodium ion reabsorption from the filtrate into peritubular blood across the cells of this component of the nephron (marked by the black asterisk) Choose from the following: (A) is regulated by the binding of the hormone aldosterone (B) is not regulated by any hormone, but is determined by sodium ion concentration and filtrate flow

List specific transport mechanisms occurring in different parts of the nephron, including active transport, osmosis, facilitated diffusion.

22,   An example of reabsorption in the nephron is   Multiple Choice   movement of histamine from the peritubular capillaries into the proximal convoluted tubule   movement of Na+ from the proximal convoluted tubule into the peritubular capillaries   movement of histamine from the peritubular capillaries into the proximal convoluted tubule   movement of K+ from the peritubular capillaries into the distal convoluted tubule