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