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Proteins

Proteins. Proteins are made up of monomers called AMINO ACIDS Function is structure, movement, defense , and control chemical reactions Found in hair, muscles, nails, feathers, hormones… Made of elements C-H-O-N-S

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Proteins

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  1. Proteins • Proteins are made up of monomers called AMINO ACIDS • Function is structure, movement, defense , and control chemical reactions • Found in hair, muscles, nails, feathers, hormones… • Made of elements C-H-O-N-S An amino acids bonds to another amino acid by a covalent peptide bond forming a peptide • A protein is a chain of amino acids Peptides bond to peptides by peptide bonds making polypeptides • A protein is a polypeptide

  2. Peptide Bonds – link amino acids

  3. Some Amino Acids

  4. Protein Structure • Primary Structure – sequence of amino acids in a chain • Secondary structure – chain of amino acids either folds (b folds) or twists (a helix) • Tertiary structure – • keeps primary and secondary structure • 3D shape • Determines polarity

  5. Denaturing of Protein –The shape of protein determines the work it can do. If the 3D shape is destroyed the protein remains but cannot function properly. Environmental factors such as pH, temperature can denature a protein.

  6. Isn’t it pretty?

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