NUSC 1165 Lecture Notes - Lecture 9: Pancreatic Juice, Membrane Transport Protein, Chyme
Document Summary
Small intestine: main site of digestion and absorption: Peristalsis propels chyme through the small intestine. Produces intestinal juices to aid in absorption. Signals the pancreas to secrete pancreatic juice. Stimulates the liver to secrete bile to the gallbladder. Signals the pancreas to secrete digestive enzymes. Causes the gallbladder to contract and release bile into the duodenum. Digestion products from the energy-yielding nutrients in the small intestine. Further enzymatic breakdown of the energy-yielding nutrients. Movement of molecules into the small intestinal cell from a high concentration gradient to a low concentration gradient. Does not require a carrier protein and energy in order to proceed. Movement of water from a low concentration of nutrient to a high concentration of nutrients inside of the intestinal cell. Does not require energy and a protein carrier. Movement of molecules from a high to low concentration inside of the intestinal cell. Movement of molecules from a low to high concentration inside of the cell.
