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Week 1 Thurs. Apr.7 Topic: Essential Nutrients/Calories Class activity (participation) Add class-pay fees-check class website Tues. Apr. 12 Topic: Deciphering a food label Bring food label activity to class (see course website)
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Nutrition Basics Calories Essential Nutrients
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Did anyone read the syllabus? What was one piece of information you learned from reading the syllabus?
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What is a Calorie? Good?Bad? The amount of heat it takes to raise one gram of water one degree centigrade.
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Where are Calories found? Carbon containing (organic) substances wood, oil, paper, alcohol, cloth, coal, trees, hay….. Calories=energy (nrg) Carbohydrates Lipids (fats and oils) Protein Alcohol…not essential….provides 7 calories/gram All of the above contain carbon FOOD! 4 calories/gram 9 calories/gram
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How does nrg (calories) get into food ? Watch this visual on where Calories (food nrg) comes from.Calories Most of the dry weight of a plant is from…? carbon dioxide (CO 2 ) in the air! What is this plant-based ‘CO 2 packaging’ process called? photosynthesis
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Photosynthesis Transfer sunlight (solar nrg) food nrg solar nrg+H 2 O+CO 2 glucose+O 2 Glucose (simple sugar) contains six carbon atoms from CO 2 basic building block of all carbohydrates blood sugar aka glucose or C 6 H 12 O 6
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Cellular Respiration Transfer food nrg ATP (cell nrg) ATP is the chemical fuel of the cell food nrg+O 2 H 2 O+CO 2 +ATP+heat
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CO 2 +H 2 O+ NRG PHOTOSYNTHESIS CELLULAR RESPIRATION sunlightglucose ATP + heat food Solar nrg Food nrg Cell nrg NRG nutrient+O 2 NRG transfer
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Essential Nutrients What does ‘essential’ mean to you?
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‘Essential’ in nutrition means: Required for health Must be obtained from our diet What are the essential nutrients? Non-Essential Nutrients Required for health too! We make enough to our meet needs creatine, lecithin, cholesterol etc.
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EN Activity Purpose: To acquaint you with EN’s and their food source. In assigned Expert Groups, complete Expert Worksheet-Turn in today. When prompted, move to Base Group. You will be the ‘expert’ in your Base Group. EN Summary Worksheet is a study guide (keep it!)
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Homework Read the course outline : ) Bring a food ….not candy or gum… label next class See class website for notes/handouts
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