1. Objective: Food stores chemical energy Procedure: 1. Go over homework 2. Lecture 3. Concept check questions Homework: Write a paragraph comparing and contrasting energy conversion in a car vs. energy conversion in your cells Bell-work: Define food for me in chemical terms. What was in your lunch today? Now describe it in terms of the classes of organic molecules it contains. Go back to chapter 5 (honors – 3) for help. October 24, 2006
4. Adenosine Triphosphate (ATP) How chemical energy is stored: Energy + ADP + Pi ATP How chemical energy is used: ATP ADP + Pi + Energy
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6. Sitting still in class, you radiate as much heat as a 100W light bulb!
7. A calorie is the amount of energy required to raise the temperture of 1g of water by 1 degree C By measuring the increase in water temperature, you can calculate the number of calories in any food 1,000 calories = 1 kilocalorie Because most food contains a lot of calories, kilocalories are the measurement you find on a nutritional label Units of Energy in Food
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