BIS 10 Study Guide - Quiz Guide: Heredity, Bloating, Brussels Sprout
Document Summary
Fq17 bis10 module 2 learning goals: essentials in biology chapters: 7,25,14,15 lectures. 7-11: explain the biological reasons why we need to eat food. To build stuff: muscles, to grow to build bio-mass: summarize the organs of human digestive system and their functions. Stomach: muscles, gastric acid breaks down food into bolus. The epithelium of the stomach forms deep pits where chief cells produce pepsinogen, an inactive precursor of pepsin, which degrades proteins. Gastric acid= kills most bacteria in food, stimulates hunger, activates pepsinogen into pepsin. Also denatures the complex protein molecules as precursor to protein digestion. Goblet cells produce mucous to protect the stomach from self-digestion. Pancreas: produces digestive enzymes that help break down proteins, carbs, + fats. As fatty food enters small intestine, the gallbladder squeezes bile through bile ducts: contrast the digestive functions of the small and large intestine.
