GA Hair Designination Exam
- Which layer of the hair shaft provides most of the hair's strength and elasticity?
- Cuticle
- Cortex
- Medulla
- Follicle
Answer: B
Explanation: The cortex is the middle layer of the hair shaft that contains protein structures responsible for the hair's strength, elasticity, and pigment.
- What is the outermost layer of the hair shaft called?
- Cortex
- Cuticle
- Medulla
- Hair bulb
Answer: B
Explanation: The cuticle is the hair's protective outer layer made up of overlapping scales.
- Which stage of the hair growth cycle is considered the active growth phase?
- Anagen
- Catagen 1 / 4
GA Hair Designination Exam
- Telogen
- Exogen
Answer: A
Explanation: The anagen phase is the active growth phase where the hair follicle produces new cells and the hair grows longer.
- Genetic factors primarily affect which aspect of hair growth?
- Follicle shape
- Color application
- Texture maintenance
- Chemical service tolerance
Answer: A
Explanation: Genetics determine aspects such as the shape of the hair follicle, which influences hair type and growth patterns.
- Which hair type typically has the flattest and most elliptical follicle shape?
- Straight
- Wavy
- Curly
- Coiled 2 / 4
GA Hair Designination Exam
Answer: D
Explanation: Coiled (or kinky) hair has the flattest and most elliptical follicle shape, producing very tight curls or coils.
- What is the primary function of the medulla in the hair shaft?
- Providing hair color
- Sealing moisture
- Unclear or no significant function
- Protecting the scalp
Answer: C
Explanation: The medulla is the innermost layer; in many hair types it is hollow or not even present, so it is not considered to have a major function.
- Which of the following is a common cause of alopecia?
- Excessive water intake
- Prolonged exposure to sunlight
- Genetic predisposition
- Too much protein in the diet
Answer: C 3 / 4
GA Hair Designination Exam
Explanation: Genetic predisposition (heredity) is one of the primary causes of various forms of alopecia (hair loss).
- Dandruff is commonly associated with which scalp condition?
- Fungal overgrowth
- Bacterial infection
- Excess keratin production
- Severe dehydration
Answer: A
Explanation: Dandruff is often linked to the overgrowth of a yeast-like fungus called Malassezia on the scalp.
- Which statement correctly describes hair porosity?
- The thickness of each hair strand
- The number of hair follicles on the scalp
- The hair's ability to absorb moisture
- The natural curl pattern of the hair
Answer: C
Explanation: Hair porosity refers to how well the hair can absorb and retain moisture, which affects product absorption and processing times.
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