bonds
A physical side bond that is easily broken by water and heat is a:
hydrogen bond
Current research confirms that dandruff is the result of a fungus called:
malassezia
what are the types of alopecia?
Androgenic alopecia, Alopecia areata, Postpartum alopecia
A long chain of amino acids linked by peptide bonds is called a:
polypeptide chain
The substance secreted by the sebaceous glands is called:
sebum
The three different types of side bonds are:
hydrogen, salt, disulfide
What do you look for in a scalp analysis?
Abrasions
The sudden falling out of hair in round patches or baldness in spots is:
The units of structure that build protein and are joined together end to end like pop beads are:
amino acids
The hair shaft that emerges from the scalp is a nonliving fiber composed of:
Permanent waving and hair relaxers change the shape of hair by chemically altering the hair’s:
disulfide bonds
Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by:
fungal organisms
A highly contagious skin disease caused by a parasite called a mite is
scabies
The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as the:
COHNS elements
The pocket or tube-like depression in the scalp or skin that contains the hair root is the:
follicle
Hydroxide chemical relaxers break disulfide bonds and convert them to:
lanthionine bonds
An infestation of the hair and scalp with head lice is:
pediculosis capitis
what are the growth cycles?
anagen, catagen, telogen
List 5 major elements of hair.
carbon, oxygen, hydrogen, nitrogen, and sulfur
Dry hair and scalp should be treated with products that contain moisturizers and:
emollients
what is protein made up of?
The protein is made up of long chains of amino acids, which, in turn, are made up of elements.
An acute, localized bacterial infection of the hair follicle that produces constant pain is a
furuncle
A severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum is
List the percentage of COHNS elements.
Carbon – 51 percent
Oxygen – 21 percent
Hydrogen – 6 percent
Nitrogen – 17 percent
Sulfur – 5 percent
The melanin that provides brown or black color to hair is:
eumelanin