Compléter Ch 11 Properties of Hair & Scalp (D)Version en ligne Chemical Composition par Shawanna Whidbee 1 follicle composed originating protein Hair is of that grows from cells within the hair . 2 cells maturation keratinization The of these is called . 3 COHNS skin nails elements elements five Together , the that make up human hair are referred to as the to help people remember them ; they are also found in the and the . 4 bond hydrogen cross dries broken heat link water A is a weak , physical , - side bond that is easily by or ; these bonds reform when the hair . 5 bonds polypeptide salt side Weak bonds , physical , cross - linked between adjacent chains are . 6 bonds waves relaxers chemical disulfide permanent The hairs strongest side bonds ; are broken through and . 7 Pheomelanin Melanin pigment Eumelanin are the tiny grains of in the cortex that give natural color to the hair ; and . 8 wavy pattern straight shape wave curly extremely The of hair refers to the of the hair strand and is described as , , , or curly . 9 Asian curly Native extremely varying extremely curl African straight anyone and Americans tend to have hair , while American ? s tend to have hair ; however of any race , or mixed race can have hair with degrees of . 10 curly elasticity often low Extremely hair has .