1. what do you think a “peptide”means? 2. Proteins are extremely long, folded chains of amino acids, containing between 150-1000 amino acids linked together in a straight chain. A protein will have a long repeating chain of-N-C-C- as its backbone, with different R groups sticking out. How long could a protein be? be specific. 3. Add the C’s and H’s into their structural formulas. picture included

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Q: Why is it that not all the angles between C-N can freely rotate?

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