Cosmetology Student Review Quiz

What is the outer layer of the hair called?

• Cuticle

• Cortex

• Medulla

• Keratin

Which layer of the hair is not always present?

• Cuticle

• Keratin

• Cortex

• Medulla

What is the protein that makes up the hair?

• Myosin

• Collagen

• Elastin

• Keratin

What is the main amino acid in keratin that is rich in sulfur?

• Glycine

• Cysteine

• Lysine

• Methionine

What type of bond connects amino acids in a polypeptide chain?

• Hydrogen bond

• Ionic bond

• Disulfide bond

• Peptide bond

Which bond in the hair can only be broken with the use of chemicals?

• Salt bond

• Hydrogen bond

• Disulfide bond

• Peptide bond

What is the purpose of the cuticle layer?

• To create a barrier

• To provide nutrients

• To produce keratin

• To generate goosebumps

What happens to the cuticle layer when you brush your hair?

• It gets stronger

• It generates new hair

• It opens up

• It produces more keratin

What is the innermost layer of the hair called?

• Cuticle

• Keratin

• Cortex

• Medulla

What is the function of the dermal papilla?

• To provide nutrients

• To produce keratin

• To create a barrier

• To generate goosebumps