Fill in the Blanks Ch 11 Properties of Hair & Scalp (D)Online version Chemical Composition by Shawanna Whidbee 1 protein follicle composed originating Hair is of that grows from cells within the hair . 2 keratinization cells maturation The of these is called . 3 elements elements nails skin COHNS 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 broken link dries water heat bond cross hydrogen A is a weak , physical , - side bond that is easily by or ; these bonds reform when the hair . 5 bonds side salt bonds polypeptide Weak , physical , cross - linked between adjacent chains are . 6 bonds chemical permanent disulfide relaxers waves The hairs strongest side bonds ; are broken through and . 7 Pheomelanin Eumelanin pigment Melanin are the tiny grains of in the cortex that give natural color to the hair ; and . 8 extremely wavy shape pattern curly wave straight The of hair refers to the of the hair strand and is described as , , , or curly . 9 straight Asian varying anyone extremely Native curly African curl extremely 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 low often Extremely hair has .