Question

1. a disulfide bond is a strong ______ side bond.

a) chemical
b) salt
c) physical
d) end - to - end

1. what will alter disulfide bonds?

a) hair spray
b) hair relaxers
c) thermal conditioners
d) water

1. which of the following is not a recommended precaution to take before using therma to ensure that hair is protected?

a) use heat protectant styling products
b) choose the correct thermal tools and use the tools recommended settings
c) test the tools out on your own hair first
d) conduct research on curling and flat irons before purchasing them

1. create a set of flashcards from the two lists below—front and back of card—to test y characteristics of the different side bonds. make sure that you include the correct c with the correct side bond, then test yourself with a partner. if you wish to make the more challenging for either you or your partner, feel free to add more characteristic whats on the list.

front of card type of bond
disulfide
peptide
hydrogen
salt
back of card characteristic

• broken by permanent wave solutions
• broken by chemical depilatories
• weak physical bond
• strong chemical bond
• broken by alkaline or acidic solutions
• when broken, can be reformed by drying or cooling
• very strong chemical bond
• when broken, cannot be reformed
• when broken, can be reformed by balancing the ph

chapter 07: hair and scalp properties

Explanation:

1. Disulfide bonds are strong chemical side - bonds in hair.
2. Hair relaxers are chemicals that can alter disulfide bonds.
3. Testing tools on your own hair first is not a recommended general precaution as it can damage hair if not done properly. Heat protectant products, correct tools with proper settings, and research before purchase are better precautions.
4. Flashcards can be created as follows:

• Disulfide: Strong chemical bond, broken by permanent wave solutions.
• Peptide: Not applicable in the given list of characteristics (usually main - chain bond in proteins).
• Hydrogen: Weak physical bond, when broken, can be reformed by drying or cooling.
• Salt: Broken by alkaline or acidic solutions, when broken, can be reformed by balancing the pH.

Answer:

1. A. chemical
2. B. hair relaxers
3. C. test the tools out on your own hair first
4. Disulfide - Front: Disulfide; Back: Strong chemical bond, broken by permanent wave solutions

Peptide - Front: Peptide; Back: No relevant characteristic from list
Hydrogen - Front: Hydrogen; Back: Weak physical bond, when broken, can be reformed by drying or cooling
Salt - Front: Salt; Back: Broken by alkaline or acidic solutions, when broken, can be reformed by balancing the pH