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

Nutrition Basics Calories Essential Nutrients

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?  Organic, carbon containing substances wood, oil, paper, alcohol, cloth, coal, trees, hay…..  Calorie (energy) sources relevant to nutrition Carbohydrates Lipids (fats and oils) Protein Alcohol…not essential….provides 7 calories/gram FOOD! 4 calories/gram 9 calories/gram

Calories: where do they originate and how do they get into food?  Think plants. What is the origin of most of their organic matter (dry mass)? carbon dioxide (CO 2 ) in the air we breathe  What is the ‘CO 2 packaging’ process called? photosynthesis  A visual on where Calories (organic matter) 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 building block of all carbohydrates

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 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  Work in assigned Expert Group. 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 (keep as study guide for Exam1)  Text, classroom texts, peers, instructor, internet OK to use.

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