Nutrition

Review: Pathway of Food  Mouth  Pharynx  Esophagus  Stomach  Small Intestine  Large Intestine  Rectum and anus

Review: Digestive System Findfunfacts.appspot.com

Review: accessory organs  Pancreas  Produces enzymes  Liver  Makes bile  Gallbladder  Stores bile WebMD

What is energy and where do we get it?  Nutrition: process by which a person takes in and uses food  Energy: ability to do work  Calorie: measurement of energy content

Energy-Producing Nutrients  Carbohydrates: 1 gram = 4 calories  Proteins: 1 gram = 4 calories  Fats: 1 gram = 9 calories

Carbohydrates  Types  Simple (simple sugars)  Complex (starches and fiber)  Sources  Simple carbohydrates: fruits, soda pop, candy  Complex carbohydrates: bread, rice, vegetables  Fiber: bran, whole-grain bread, beans Kidscreativechaos.com

Carbohydrates (cont.)  Function  Quick energy  Fiber: keeps things moving  Digestion  Mouth: complex carbohydrates broken down into simple sugars  Small intestine: simple sugars absorbed  Fiber: not digested

Proteins  Made up of amino acids  9 essential, 11 nonessential  Types  Complete  Incomplete  Sources:  animal products (meats, fish, poultry, eggs, dairy)  plant products (vegetables, fruits, grains) Thekitcn.com

Proteins (cont.)  Function  Energy and cell structure  Digestion  Stomach: breaks down proteins into amino acids  Small intestine: absorbs amino acids

Fats  Types  Saturated and unsaturated  Sources  Saturated: meat, cheese, dairy products  Unsaturated: plants Cookinglight.com

Fats (cont.)  Function  Concentrated source of energy, protection, preserve heat, homeostasis, store and transport vitamins, cell structure  Digestion  Small intestine

MyPlate.gov

Group Activity  In groups, analyze your food label and fill out your worksheets.  Discuss the questions on the bottom of the worksheet.  Be prepared to present your conclusions to the class.

Conclusion  Major nutrients are carbohydrates, fats, proteins  Provide energy in the form of calories  Our body uses these nutrients for building cells, keeping us warm, maintaining homeostasis, and moving around  We need all of these nutrients to survive  MyPlate.gov provides daily recommendations

Tomorrow  Quiz on digestive system and nutrition. Study your handouts!  Learn about vitamins and minerals