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 made in the liver but stored in the gall bladder. Bile is produced in the liver from cholesterol. It is stored in the gallbladder which is situated just below the liver. The gallbladder is connected to the cystic duct which opens in the second part of the duodenum, which is part of small intestine.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. 6 people found this useful. Edit.