Explain the process of digestion of food in small intestine of man

Pancreatic juice is released by the pancreas into the small intestines while the liver produces bile. In the pancreatic juice is trypsin that digests protein into small peptides, bile emulsifies fats. Most of this digestion occurs in the duodenum. After digestion, they are absorbed in the ileum

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.