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| Description: Primary Active Transport Uses ATP, like Na+/K+ pumps At rest, accounts for 6% total body ATP use Secondary Active Transport Driven by ion’s electrochemical gradient Symporters move substances in same direction Antiporters move substances in opposite directions Water Reabsorption Obligatory Water Reabsorption – 90% Water follows the solutes that are reabsorbed Facultative Water Reabsorption – 10% Regulated by ADH Reabsorption and Secretion in PCT Na+ - Glucose Symporters Na+ - H+ Antiporters Aquaporin - 1 Membrane protein permeable to water Picture Stats: Views: 161 Filesize: 347.31kB Height: 570 Width: 693 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=40858 |