A
B
C
D
E
100
A long chain of amino acids linked by peptide bonds is call a what?
What is A polypeptide chain
100
A lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is attached to the what?
What is the CORTEX
100
A physical side bond that is easily broken by water and heat is a what?
What is HYDROGEN BOND
100
A small cone-shaped area located at the base of the hair follicle that fits into the hair bulb is the what?
What is DERMAL PAPILLA
100
A weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by changes in pH is a what?
What is SALT BOND
200
All natural hair color is the result of pigment called what?
What is MELANIN
200
Hair is approximately what percent protein?
What is 90
200
Hair is composed of protein that grows from cells originating within the what?
What is HAIR FOLLICLE
200
The Greek word for trichos means what?
What is HAIR
200
The body naturally produces out of 20 amino acids that make up hair.
What is 11
300
The fibrous protein core formed by elongated cells that contain melanin pigment is the what?
What is CORTEX
300
The hair shaft that emerges from the scalp is a nonliving fiber composed of what?
What is Keratinized protien.
300
The hair, skin, nails, and glands are part of what system?
What is INTEGUMENTARY
300
What is the outermost layer of hair?
What is HAIR CUTICLE
300
What is the growth phase during which new hair is produced?
What is ANAGEN
400
What are the three growth cycles of human hair?
What is ANAGEN, CATAGEN, and TELOGEN.
400
Vellus hair is also known as hair?
What is LANUGO
400
The three different types of side bonds that link chains of amino acids together are what?
What is HYGROGEN, SALT, DISULFIDE
400
The thickened, club-like structure that forms the lower part of the hair root is the what?
What is HAIR BULB
400
The substance secreted by the sebaceous glands is called what?
What is SEBUM
500
The small, involuntary muscle fiber in the base of the hair follicle is the what?
What is ARRECTOR PILI
500
The pocket of tube-like depression in the scalp or skin that contains the hair root is the what?
What is FOLLICLE
500
The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as what?
What is COHNS elements
500
What type of bond is broken by wetting the hair with water and is reformed when the hair dries?
What is HYDROGEN BOND
500
What part of the hair is located below the surface of the epidermis?
What is HAIR ROOT
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