he stomach contents enter the intestine gradually, allowing time for the liquid food to be processed. First the acid is neutralised by bile, provided by the liver, and then digestive enzymes are added by the pancreas. The enzymes act like molecular scissors, breaking proteins, carbohydrates and fats down into building blocks small enough to be carried over the wall of the small intestine. The remaining undigested material passes into the large intestine, which absorbs water, leaving behind solid waste that can
