Aim: 3 Keys to Healthy Eating for Teens Enter Date Aim: 3 Keys to Healthy Eating for Teens Warm-up: HW:

Elements of Life 96% of living organisms are made of: carbon (C) oxygen (O) hydrogen (H) nitrogen (N)

Types of Compounds Organic  Both C and H present  Living or once living Inorganic  Do not contain both C and H  Non-living

Organic or Inorganic? Organic Organic H2O: CO2: C6H12O6: C12H22O11: NaCl: Inorganic Inorganic Organic Organic Inorganic

Molecules of Life What are bodies made of? Put C, H, O, N together in different ways to build living organisms What are bodies made of? Carbohydrates sugars & starches Proteins Fats (lipids) nucleic acids DNA, RNA

Carbohydrates

Carbohydrates Source of ENERGY Building block molecules = sugars sugar - sugar - sugar - sugar - sugar sugar

Sugars = building blocks Names for sugars usually end in glucose fructose sucrose maltose -ose fructose maltose Sucrose

Structure of Glucose C_ H_ O_ Glucose 6 12 6 6 12 6 Carbon__________ Hydrogen________ Oxygen__________ C_ H_ O_ 6 12 6 6 12 6

Carbs continued One sugar= Monosaccharide Two sugars connected= Disaccharide Many sugars connected in a long chain= Polysaccharide

Building Carbohydrates Synthesis 1 sugar = monosaccharide 2 sugars = disaccharide | glucose | glucose | maltose

Monomer: Polymer:

Examples of Carbohydrates A. 1 Sugar = Monosaccharide/Simple Sugar Ex: Glucose & Fructose (C6H12O6) B. 2 Sugars = Disaccharide Ex: Maltose, Sucrose, Lactose (C12H22O11) C. Many Sugars = Polysaccharide Ex: Starch, Glycogen, Cellulose