Chemical Texture

It is important for stylists to remember that ammonia-free does not necessarily mean _____.

• acid-free
• odor-free
• damage-free
• heat-free
  heat-free

What are long, coiled polypeptide chains linked together end-to-end like beads?

• Keratin proteins
• Peptide bonds
• Amino acids
• Polypeptide chains

What are the basic building blocks of hair that affect how chemical solutions react?

• Amino acids, peptide bonds, polypeptide chains, keratin proteins, and side bonds
• Amino acids, peptide bonds, polypeptide chains, keratin proteins, and oxygen
• Amino acids, peptide bonds, polypeptide chains, keratin proteins, and hydrogen bonds
• Amino acids, peptide bonds, polypeptide chains, keratin proteins, and square bonds

What determines the size of the curl in a permanent waving process?

• The color of the hair
• The size of the rod
• The length of the hair
• The texture of the hair 

What chemical side bonds are formed when two sulfur-type chains are joined together?

• Disulfide bonds
• Keratin bonds
• Peptide bonds
• Amino acids

Modern acid waves are actually _____ waves, which are permanent waves that have a 7.0 or neutral pH.

• alkaline-balanced
• weaker
• stronger
• acid-balanced

In a _____, the hair is wrapped at an angle other than perpendicular to the length of the rod which causes the hair to spiral along the length of the rod.

• basic permanent wrap
• croqiognole perm wrap
• spiral perm wrap
• curvature permanent wrap

Without a thorough understanding of _____, cosmetologists could damage hair, cause hair loss, and harm their clients and themselves.

• chemistry
• color theory
• immunology
• branding

Which layer of hair is the innermost layer of the hair, and often called the pith or core of the hair?

• Hair shaft
• Medulla
• Cuticle
• Cortex

_____ waves are perms using an ingredient that does not evaporate as readily as ammonia, so that there is very little odor associated with their use.

• Exothermic
• Acid-balanced
• Ammonia-free
• Endothermic