define autotrophs. an organism that makes its own food (often by photosynthesis), thereby sustaining itself without eating other organisms or their molecules. Plants, algae, and numerous bacteria are autotrophs. define producers.
Cholecystokinin is produced by I-cells in the lining of the duodenum and is also released by some neurons in the brain. It acts on two types of receptors found throughout the gut and central nervous system. The most recognised functions of this hormone are in digestion and appetite.holecystokinin is produced by I-cells in the lining of the duodenum and is also released by some neurons in the brain. It acts on two types of receptors found throughout the gut and central nervous system. The most recognised functions of this hormone are in digestion and appetite.
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 th â¦ e duodenum. + 7 others found this useful. Connie Tedrow.o, bile is a fluid that is produced in the liver, then it is released into the gallbladder. No, the liver produces bile. It aids in the digestion and  processing of food.