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| Description: In cotransport, the unfavorable movement of a substance through the membrane is coupled to the favorable transport of another substance. The sodium–glucose cotransport channel is also presumed to have two possible states one open only to the outside one open only to the inside of the cell Transition to the inside open state is stimulated by glucose binding to E.Na+ Return to the outside-open state occurs upon Na+ release to the inside of the cell. The sodium gradient from inside to outside provides the driving force for the unfavorable transport of glucose. Picture Stats: Views: 242 Filesize: 247.88kB Height: 537 Width: 591 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34347 |