Aldosterone acts at:
Ans. A Collecting ductRef: Ganong, 23rd ed. pg. 648* Aldosterone is secreted from adrenal cortex.* Action of aldosterone is localized to distal tubule are collecting duct.* Mechanism: Stimulates Na+K+ ATPase at basolateral end which generate gradient for movement of sodium ion from apical membrane causing an increase in sodium: reabsorption.
Collecting duct
Glomerulus
Proximal convoluted tubule
Loop of Henle
Kidneys and Body Fluids