SCI L2

• enzymes - protein substances that can initiate or speed up chemical reactions
• substrates - substances that are acted upon by enzymes
• what are the 3 groups of digestive enzymes?

  • carbohydrases
  • proteinases
  • lipases
• stomach - bolus. which contains the disaccharides that will be changed into chyme by churning action of the stomach
• pancreatic duct - connected to the small intestine. secretes pancreatic juice containing enzyme analopsin
• intestinal glands - releases the final enzymes for carbohydrates digestion
• carbohydrates + ptyalin = disaccharides
• what are the 3 carbohydrases?

  • maltase
  • lactase
  • sucrase
• protein + pepsin = small polypeptides
• irritable bowel syndrome - colon muscle contracts more often than normal
• acid reflux - containing fluids that move upward through esophagus
• diarrhea - frequent loose bowel movements
• peptic ulcer - sores or lesions form in the lining of the stomach or the duodenum due to bacterial infection
• stomach flu - infection of the stomach and upper part of the duodenum
• constipation - difficult or hard passage of stool