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