FREE AND STUDY GAMES ABOUT CHAPTER 20 EXAM

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FREE AND STUDY GAMES ABOUT CHAPTER 20 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -7 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: What is the difference between an alkaline wave and a true acid wave?

Answer:

Alkaline wave have a pH between 9 and 9.6, while true acid waves have a pH between 4.5 and 7. True acid waves also process more slowly and do not produce as firm a curl as alkaline waves.Question 2: What are the chemical actions that take place during permanent waving?

Answer:

The chemical actions that take place are from the application of permanent waving solution and neutralizer.

Question 3: How do thio relaxers straighten the hair?

Answer:

Thio relaxers break disulfide bonds and soften the hair. After enough bonds are broken, the hair is straightened into its new shape.

Question 4: What is curl re-forming and what it is best used for?

Answer:

Curl reforming makes the existing curl larger and looser. It is best used on existing curly hair to make the existing curls larger and looser.

Question 5: Name the structures of and purpose of each layer of the hair.

Answer:

Cuticle- tough exterior layer of hair; surrounds inner layers; protects hair from damage Cortex- middle layer; responsible for strength and elasticity Medulla- innermost layer; often called pith or core; may be missing in fine hair

Question 6: Why do permanent waves need to be neutralized?

Answer:

It stops the action of the waving solution and rebuilds the hair into its new curl form.

Question 7: How do hydroxide relaxers straighten the hair?

Answer:

Hydroxide relaxers go through a process called lanthionization, where they remove a sulfur atom from a disulfide bond and form a lanthionine bond.