Topic: Proteins pg.19 EQ: Explain the structure & function of proteins.

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Presentation transcript:

Topic: Proteins pg.19 EQ: Explain the structure & function of proteins.

Proteins

Monomers of Proteins AMINO ACIDS are the monomers of proteins Elements present C, H, O, N, sometimes S Elements: C,H,O, N, sometimes S

Amino Acids are made of… 1 common group 1 side group (“R” group)

Polymers of Proteins POLYPEPTIDES are the polymer of amino acids

Polypeptide Shapes Chain of amino acids-primary α helix & β sheet- secondary Three dimensional- tertiary More than one polypeptide chain- quaternary

QUICK CHECKS What is the monomer of proteins? Amino Acids What are the parts of an amino acid? 1 common group & 1 side group What is the polymer of proteins? Polypeptide Which biomolecule has the most versatility in its shape? Proteins

Functions of Proteins Cell membranes all contain proteins They make up enzymes for helping chemical reactions They make up antibodies in the immune system They makeup non-steroid hormones They are the major structural molecules in living things for growth and repair : muscles, ligaments, tendons, bones, hair, skin, nails THINK: Proteins= membranes, enzymes, antibodies, non-steroid hormones, structural molecules, “MEANS”

Examples of proteins Animal Products (dairy and meats) Enzymes