ANP 1107 Lecture 2: Metabolism

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Frank Christinck

Document Summary

Except for lactose and a small amount of glycogen in meats, all dietary carbohydrates come from plants. Sugars: fruits, sugar cane, sugar beets, honey, milk. Glucose is major body fuel (galactose and fructose converted to glucose) Neurons and rbcs rely almost 100% on glucose, other cell types can use fats. Blood glucose must be monitored for optimal brain function (4-7 mmol/l) Sugars found in nucleic acids, glycoproteins, glycolipids. Blood glucose too high? excess converted to glycogen (liver 100 g, skeletal muscle 100 g) and fat (liver, fat cells) ~100g/day minimum (125-175 gm daily recommended; complex carbs) Most abundant dietary lipids are neutral fats (triglycerides) 1) saturated fats in meats, dairy products, coconut. 2) unsaturated fats in seeds, nuts, most vegetable oils. Also cholesterol (egg yolk, meats, milk products) and phospholipids. Cholesterol used for plasma membrane component and precursor for bile salts and steroid hormones. Liver can convert one fatty acid to another, except for linoleic (omega-6) and linolenic (omega.