What is digestion? The mechanical and chemical breakdown of ingested food into subunits, enabling the absorption of the subunits (nutrients) by the inner epithelial cells of the digestive tract.
Name the organs in the path an apple would take through your digestive tract from first bite to elimina...
Bio 1023 - Chap 27 Questions and Correct Answers What is digestion? ✅The mechanical and chemical breakdown of ingested food into subunits, enabling the absorption of the subunits (nutrients) by the inner epithelial cells of the digestive tract. Name the organs in the path an apple would take through your digestive tract from first bite to elimination. Next to each organ, provide a brief explanation of its function. ✅1 Mouth - teeth & tongue break down food and mixes with saliva. 2. Esophagus - passes the food from mouth to stomach. 3. Stomach - temporarily stores, breaks down further, mixes with HCl. 4. Small intestine - Final digestion and absorption occur. 5. Large intestine - Produce vitamin, absorb, reclaim water & makes feces. 6. Rectum - Stores wastes until eliminated. 7. Anus - Opening to eliminate feces (wastes). salivary gland ✅A gland in the mouth that produces saliva containing the enzyme amylase that helps break down carbohydrates. Peristalsis ✅Coordinated muscular contractions that force food down the digestive tract. Pepsin ✅A protein -digesting enzyme that is active in the stomach. Chyme ✅The acidic "soup" of partially digested food that leaves the stomach and enters the small intestine. duodenum ✅The first portion of the small intestine, where mixing of chyme and digestive enzymes occurs. bile salts ✅Chemicals produced by the liver and stored by the gallbladder that emulsify fats so that they can be chemically digested by enzymes. Name the key events that occur in the stomach. ✅Three key events occur in the stomach: i. mixing of food with the stomach acid and digestive enzyme ii. digestion of protein by the enzyme pepsin produced by the stomach and iii. destruction of bacteria by the stomach acid. What do liver, gall bladder and pancreas have in common? ✅They are all accessory organs that secrete enzymes and other substances into the small intestine.
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