Human Biology BIO 100 Week 3 Class Notes
Human Biology BIO 100 Week 3 Class Notes Biol 100
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This 3 page Class Notes was uploaded by snufkin on Sunday September 18, 2016. The Class Notes belongs to Biol 100 at San Francisco State University taught by Lynne Dowdy in Fall 2016. Since its upload, it has received 10 views. For similar materials see Human Biology in Biology at San Francisco State University.
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Date Created: 09/18/16
Biology Notes: Week 3 Organic Macromolecules: organic= made of carbon (and hydrogen) Carbohydrates: makes quick energy, stores energy , building block Monosaccharides Ex. glucose (blood sugar), galactose, ribose, fructose Disaccharides Ex. sucrose (table sugar → glucose + fructose), lactose (glucose + galactose) Polysaccharides (complex carbohydrates) Ex. starch (in plants to store glucose), glycogen (stores glucose in animals in liver and muscles) Dietary Fiber: Ex. cellulose found in plants humans are unable to digest fiber fiber lowers risk of intestinal cancer lowers cholesterol levels High Blood Sugar: detected by cells in the pancreas β cells in the islets of langerhans release insulin, a hormone it is released into the bloodstream insulin receptors respond to the insulin in the liver, muscle, and at Low Blood Sugar: detected by the pancreas α cells produce glycogon glucagon is released into the bloodstream Diabetes Mellitus: Symptoms: Excessive urination Excessive thirst Unexplained weight loss Type I Diabetes: starts in childhood pancreas does not make insulin thought to be an autoimmune disease Autoimmune disease when the immune system attacks itself Long term problems: kidney problems retina damage, blindness nerve damage cardiovascular problems (poor circulation) Treatment: inject insulin into the bloodstream Type II Diabetes: usually starts in adults insulin is still made, but receptors do not respond Risk factors: family history sedentary lifestyle poor diet obesity Treatment: change lifestyle (lower risk factors)
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