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Protein

Protein. Definition Functions Incomplete vs. Complete Sources Introductory Video. Functions. Grows and repairs tissues Regulates body functions Transports nutrients and oxygen Supplies energy when carbohydrates and fats don’t supply adequate amounts McGill Video. Structure.

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Protein

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  1. Protein • Definition • Functions • Incomplete vs. Complete • Sources • Introductory Video

  2. Functions • Grows and repairs tissues • Regulates body functions • Transports nutrients and oxygen • Supplies energy when carbohydrates and fats don’t supply adequate amounts • McGill Video

  3. Structure Structure Structure of Amino Acids: McGill Video

  4. Amino Acids • The main component of every cell in the human body • Amino Acids are the building blocks of Protein • 20 Amino Acids • 9 are Essential McGill Video

  5. Sources • Essential/Complete • Essential Amino Acids are required by animals but can only be supplied by the diet(not synthesized in the body) • Animal sources • Supply all 9 essential Amino Acids • Examples: Chicken, Fish, Milk, Eggs *Soy* • Incomplete • Plant sources • Supply only a few essential Amino Acids • Examples: Peanut Butter, Legumes, Rice

  6. Review the bar graphs below that represent the proportion of amino acids in corn and rice. These two food sources are considered to be incomplete proteins because:

  7. Combinations • You can combine two incomplete sources of protein to make it complete. • Peanut Butter and Bread • Beans and Rice • Hummus and Pita Chips • McGill Video

  8. Amounts Too Much Protein in the Diet • Increases workload of the digestive system • Strains the liver and kidneys • Ketosis – body burns fat instead of glucose for energy • - causes organs to fail, gout, bad breath Too Little Protein in the Diet • Causes malnutrition, increased risk of infection • Could possibly cause early death • Kwashiorkor – bloated stomach

  9. RDA Examples of Protein: 1 egg = 6 g 1 c. milk = 8 g 8 oz. yogurt – 11 g 1 c. beans = 16 g 3 oz. meat = 21 g

  10. Calories per gram Protein = 4 calories/gram • So how many estimated calories from protein does an egg contain? • 6 grams x 4 calories = 24 calories

  11. Calories per gram Protein = 4 calories/gram • How many calories from protein are in a cup of milk?

  12. Eggs – The “Perfect” Protein • Why are Eggs considered the • “perfect” protein? • Highest Quality Protein • Contain ALL 20 Amino Acids • Helps you feel full • Possesses many nutrients • Benefit of Eggs Video

  13. Parts of an Egg

  14. Parts of an Egg How well do you know the parts of an egg? Test your knowledge: Parts of an Egg Board Activity

  15. Parts of an Egg GROUP ACTIVITY: Carefully break a raw egg into a custard cup or bowl. Inspect the yolk and white and feel both with your fingers. Answer the questions on the study sheet provided.

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