KIN*1030 Chapter Notes - Chapter 1: Chyme, Active Transport, Facilitated Diffusion
Document Summary
500 bc- anaxagoras reasoned food has generative components (eluding to nutrients) 460 bc- hippocrates recognized medical exams should focus on individual. 1614- sanctorius concludes that what goes in does not equal what goes out eluding to metabolism. 1600- supplements helps individuals with particular disease and some nutrients are essential. 1900- how much each nutrient is needed for optimal health. Differentiates between insoluble fiber components (cellulose, lignin) but poorly differentiates sugars, starches and cell soluble: southgate method- provides info about sugars, starches fiber, useful for food labeling but not agricultural purposes. Simple system- monogastric, nonfunctional caecum, nutrient dense, low fiber, humans (16 ft. : oral cavity- mechanical digestion with lingual lipase and alpha amylase. Taste stimulates saliva: stomach (50ml empty, 1 to1. 5 l full, low ph. of 2 for enzymes to work)- made up of cardia (connects esophagus), fundus (upper chamber), body and antrum (connects small intestine). Gastric glands secrete gastric juice, water, electrolytes, hcl, and enzymes.
