When we read a nutrition label, the Calories tell us how much energy is stored in our food. Energy in food comes from 3 sources: fat (lipids), protein, and carbohydrates. You will be analyzing the nutrition facts of an item to determine how much of the energy (Calories) comes from each type of carbon-based molecule.
1. How many grams of lipids (fat) are in your item?
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2. How many Calories come from the lipids (fat)? Hint: 1 gram of fat=9 Calories
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3. What is one function (job) of lipids?_____________________________________________________
4. What monomers make up lipids? What are the polymers called?_____________________________________________
5. How many grams of carbohydrates are in your item?__________________________________
6. How many Calories come from carbohydrates? Hint: 1 gram of carbs=4 Calories._________________________
7. What is one function (job) of carbohydrates?_____________________________________________________
8. What monomers make up carbohydrates? What are the polymers called?_______________________________
9. Use the terms monomer and polymer to explain the difference between starches and simple sugars (like glucose).
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10. How many grams of proteins are in your item?__________________________________
11. How many Calories come from protein? Hint: 1 gram of protein=4 Calories______________
12. What is one function (job) of proteins?_____________________________________________________
13. What monomers make up proteins? What are the polymers