NUTR100 Chapter Notes -Digestion, Cholesterol, Phospholipid
30 Apr 2013
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Document Summary
Food provides us with: energy for body processes, heat for body temperature regulation, building blocks for growth and maintenance of body tissues. Why do we want to eat: food is intimately connected to our sense of taste, but also stimulates our senses of, sight, smell, touch, hearing. Appetite: psychological desire to eat certain foods (strong cravings even when we"re not hungry are due to appetite) Hunger: physiological sensation that prompts us to eat. Hormones: chemicals produced in specialized glands that travel in the bloodstream to target organs in other parts of the body: some hormones stimulate food intake, some hormones produce feelings of satiety. Organization of the body: atoms are the smallest units of matter, atoms bond to each other to form molecules, molecules are groups of atoms bonded in specific configurations (ex. H20 (water), co2 (carbdon dioxide: carbohydrates, proteins, fats, vitamins are usually very large molecules.
