Nutrition Basics Calories Essential Nutrients. Did you read the syllabus?  What was one piece of new information you learned from reading the syllabus?

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Presentation transcript:

Nutrition Basics Calories Essential Nutrients

Did you read the syllabus?  What was one piece of new information you learned from reading the syllabus?

What is a Calorie? Good?Bad? The amount of heat it takes to raise one gram of water one degree centigrade.

Calories: where are they found?  Carbon containing (organic) substances wood, oil, paper, alcohol, cloth, coal, trees, hay…..  Calories=energy (food energy!) 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

W here do calories in food originate?  What is the origin of a plants dry weight? carbon dioxide (CO 2 ) in the air  What is the ‘CO 2 packaging’ process called? photosynthesis  A visual on where Calories (food energy) come from in food.Calories

Photosynthesis Transfer solar energy (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

Photosynthesis Transfer solar energy (nrg)  food nrg solar nrg+6H 2 O+6CO 2  glucose*+6O 2 * glucose (simple sugar) contains six carbon atoms from CO 2 basic unit of all energy nutrients aka glucose or C 6 H 12 O 6

Cellular respiration Transfer food nrg  ATP (cell nrg) food nrg+O 2  H 2 O+CO 2 +ATP+heat

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

Essential Nutrients What does ‘essential’ mean to you?

‘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.

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.  Complete EN Summary Worksheet as a study guide  All resources acceptable to use.

Homework  Read the course outline : )  Bring a food ….not candy or gum… label next class  See class website for notes/handouts