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Jugar Test
1. 
Adding wave or curl to the hair is called:
A.
flat ironing
B.
permanent waving
C.
relaxing
D.
curl re-forming
2. 
The tough exterior layer of the hair structure is called the:
A.
medulla
B.
strand
C.
cortex
D.
cuticle
3. 
Which of these is NOT one of the three types of side bonds that cross-link the polypeptide chains that make up the cortex?
A.
hydrogen
B.
nitrogen
C.
disulfide
D.
salt
4. 
In the restructuring process, coarse, resistant hair with a strong compact cuticle requires a chemical solution that is:
A.
highly alkaline.
B.
mildly acidic.
C.
mildly alkaline.
D.
highly acidic.
5. 
Which of the side bonds is strongest?
A.
calcium bonds
B.
salt
C.
disulfide
D.
hydrogen
6. 
Hydrogen bonds can be broken by:
A.
water or heat
B.
heat
C.
water
D.
neither water nor heat