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Originally Posted by ognickyk  noo bro im not dumb..i know about EATING protein lol...i just wanna know the proteins that are in your body like scientific names and all...there is a good section that article tho about amino acids...thats wat i was trying to ask about |
I forgot the name of the website where you can purchase individual chapters of textbooks as an ebook. But in Understanding Nutrition the 10th Ed. Chapter #6 covers proteins. For now I gave you a brief overview below and uploaded a great powerpoint.
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Amino acids are connected together to form a protein. Peptide bonds hold amino acids together. (Attaches at the acid end of one and attaches at the amino end of another.
Dipeptide: 2 amino acids linked together
Tripeptide: 3 amino acids linked together
Polypeptide: 10 or more amino acids connected together.
There are 20 amino acids (9 essential and 11 non-essential). Essential: must come from diet, your body either cannot make it or cannot make it in sufficient quantities.
Non-essential: Your body can make these. Your body can make any non-essential amino acid given nitrogen and pieces of carb/fat.
Conditionally essential: When a non-essential becomes an essential due to the demand for it.
For example: your body can normally make tyrosine from phenylalanine but if you don't get enough phenylalanine in your diet or for whatever reason your body is not able to make the conversion (phenylketonuria) then it will become conditionally essential.
What separates carbs and fats or lipids from proteins is that proteins contain nitrogen.
Please let me know if you have any other questions or if I did not address your question.
