Hair & Scalp SciencesCâu 62 / 100
The chief protein of which hair is composed is:
a.Collagen
b.Melanin
c.Sebum
d.Keratin
Giải thích
Hair is made mostly of keratin, a fibrous protein also found in skin and nails. Keratin's cross-linked bonds give hair its strength and are the target of chemical texture services.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Which layer of the hair contains the pigment (melanin) that gives hair its color?
- The small, cone-shaped structure at the base of the follicle that supplies nourishment for hair growth is the:
- The active growing phase of the hair growth cycle is called:
- Dandruff, characterized by flaking of the scalp, is technically known as:
- Which scalp condition is caused by a fungus and typically appears as red, ring-shaped patches?
- Pediculosis capitis is an infestation of the scalp with:
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