Trace the Number 2. 3.2 based on 12 ratings. Not one, but two airplanes are flying through the sky! This cool worksheet helps your kid get a handle on writing the number 2, as she practices counting. Get ready to take on two!
Within the LOOP OF HENLE, the descending limb allows for the reabsorbtion of water through osmosis whereas the ascending limb allows for the passive and active transport of salts such as sodium to move out of the tubules and be reabsorbed.ccuring more commonly within the nephron system than filtration, this is a form of active transport which takes the the useful substances for the body from the tubules and places them back into the blood filled capillaries.
Sodium is the most important ion in relation to reabsorption from the proximal tubule. Water and chloride follow sodium passively and many other ions, compounds and molecules are absorbed through co-transporters with sodium. Other substances are secreted or reabsorbed in the tubules passively by facilitated, non-facilitated diffusion or ion channels down chemical or electrical gradients. 2  Other substances are secreted or reabsorbed by active transport against such gradients. 3  Movement is via ATPases.