Merge this question into. Split and merge into it. Answer by Amaroque. Confidence votes 11.3K. Bile is produced in the liver but is secreted by the gallbladder. Cholecystokinin (CCK) is the hormone that stimulates the gallbladder to contract and release its bile into the duodenum.erge this question into. Split and merge into it. Answer by Amaroque. Confidence votes 11.3K. Bile is produced in the liver but is secreted by the gallbladder. Cholecystokinin (CCK) is the hormone that stimulates the gallbladder to contract and release its bile into the duodenum.