Protein

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brief overview of protein for a high school biology class

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Protein

  1. 1. Protein
  2. 2. Protein •control chemical processes (like enzymes & hormones)
  3. 3. Protein •control chemical processes (like enzymes & hormones) •part of the immune system (antibodies)
  4. 4. Protein •control chemical processes (like enzymes & hormones) •part of the immune system (antibodies) •used to build body tissues
  5. 5. Examples: keratin – protein that makes up hair and fur
  6. 6. Examples: keratin – protein that makes up hair and fur thyroxine – protein that speeds up the metabolism and keeps body temperature normal even when it’s cold outside
  7. 7. Examples: keratin – protein that makes up hair and fur thyroxine – protein that speeds up the metabolism and keeps body temperature normal even when it’s cold outside lactase – enzyme that digests lactose (milk sugar)
  8. 8. Examples: keratin – protein that makes up hair and fur thyroxine – protein that speeds up the metabolism and keeps body temperature normal even when it’s cold outside lactase – enzyme that digests lactose (milk sugar) collagen – protein that gives tendons, ligaments, and skin strength and elasticity
  9. 9. Amino Acids •the building blocks of protein
  10. 10. Amino Acids •the building blocks of protein •there are about 20 different kinds in human proteins
  11. 11. Amino Acids •the building blocks of protein •there are about 20 different kinds in human proteins •typical protein molecule is made up of 5000-10,000 amino acids in a chain
  12. 12. Complete Protein •the human body can make about 12 of the amino acids it needs •the other eight cannot be synthesized and have to be ingested •“complete” proteins contain all the essential amino acids in about the right proportions •“incomplete” proteins are lacking, or have low levels of, one or more of the essential amino acids these are the ESSENTIAL AMINO ACIDS
  13. 13. Vegetarian vs. Vegan
  14. 14. Vegetarian vs. Vegan no meat but does eat milk and/or eggs
  15. 15. Vegetarian vs. Vegan no meat but does eat milk and/or eggs no animal products at all
  16. 16. •combine plant groups to get all the essential amino acids •eat a variety of foods •eat them within a day or two to get the right combinations of amino acids To get complete protein without eating animal products: Some plant products do have complete proteins like soybeans, for example.
  17. 17. that’s it!

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