Biomolecules

Protein

BIOMOLECULE - PROTEIN

  • Monomer - Amino Acids (The building blocks of protein)
  • Polymer - The protein itself would be the polymer


EXAMPLES OF PROTEINS

  • Keratin, Collagen, Elastin - Structural proteins
  • Casein, Ovalbumin - Storage proteins
  • Hemoglobin - Transport proteins
  • Insulin - Hormonal, (sugar metabolism)


FUNCTIONAL GROUPS

  • Amines
  • Carboxyls


FUNCTIONS OF PROTEINS

  • Antibodies - Specialized in defending the body from antigens (sickness)
  • Contractile - Mocing, muscle contraction
  • Structural - Provides support for body parts, make up hair, feathers, quills, etc.
  • Storage - Store amino acids
  • Hormonal - Hormones are chemicals that coordinate body activities. Proteins are the messengers of these hormones
  • Transport - Carrier molecules that move molecules around the body


STRUCTURE AND THE FUNCTION OF PROTEINS

  • Antibody structure is "Y" shaped and the tips of the Y are very varied in the make up of amino acids. This gives it a more specific approach to bonding with the antigens. After they bond, the antigen is then destroyed
  • Contractile proteins are striated (have stripes) - create structural movement
  • Structural proteins are woven together very tightly, making them strong enough for hair, feathers etc.
  • Storage proteins have many bonds, and bonds are where the energy is stored. More bonds=more energy
  • Hormonal proteins like insulin have two binding surfaces making it easy to bond with other molecules sending chemical stimuli through receptors
  • Transport proteins have small channels that act as pores that open and close in response to chemical stimuli (hormones)