Red Seal Cosmetology Practice Exam

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What is keratinization?

  1. The process of removing hair

  2. The process of coloring hair

  3. The journey of hair as it moves through the hair follicle

  4. The process of cutting hair

The correct answer is: The journey of hair as it moves through the hair follicle

Keratinization is the natural process of converting living cells to non-living, hardened cells containing keratin, a protein that makes up hair, skin, and nails. This process occurs as hair moves through the hair follicle and continues as the hair grows outward. Option A is incorrect because it is referring to hair removal, which is unrelated to keratinization. Option B is also incorrect because coloring hair does not involve the natural process of keratinization. Option D is incorrect because it refers to the act of cutting hair, not the process of keratinization itself.

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