Lipases

Lipases Fatty acids + glycerol The mucus along with the bicarbonate ions from the pancreas provides an alkaline medium (pH . ) for the enzymatic action. As a result of digestion, all macromolecules of food are converted into their corresponding monomeric units. Carbohydrates monosaccharides (glucose, fructose, galactose) Proteins amino acids Lipids fatty acids and glycerol The simple substances thus formed are absorbed in the jejunum and ileum region of the small intestine. The undigested and unabsorbed substances are propelled into the large intestine. The activities of the gastro-intestinal tract are carried out by the neural and hormonal control for proper coordination of different parts. Gastric and intestinal ­secretions are stimulated by neural signals. Hormonal control of the secretion of ­digestive juices is carried out by local hormones produced by the gastric and ­intestinal mucosa.