8. Keratin in hair has disulfide bridges. When hair undergoes a permanent wave, whereby the once straight hair is curled

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8 Keratin In Hair Has Disulfide Bridges When Hair Undergoes A Permanent Wave Whereby The Once Straight Hair Is Curled 1 (49.83 KiB) Viewed 10 times

8. Keratin in hair has disulfide bridges. When hair undergoes a permanent wave, whereby the once straight hair is curled, it is first reduced (step 1), curled (step 2), and then oxidized (step 3). Why is this protocol necessary for the permanent wave to be successful? Write the purpose of the step on the lines provided. Use the diagram below to help construct your argument. (Limit your answer to 1 sentence per step). Step 2 has already been provided. (10 pts) 1 - - 2 -SH HS- reduce Purpose of step 1: -SH HS- -SH RS- SH HS- -SH HS- curt HS- -SH HS- SH RS- -SH -SH HS- -SH RS- Purpose of step 2: sets the wave Purpose of step 3: 3 HS- -8-8- oxidize HS- HS- -SH HS-