Keratinization is a process whereby cells do all of the following EXCEPT:

A. dry out
B. change shape
C. form the medulla
D. form keratin protein

Keratinization is the process where cells dry out, change shape, and form keratin protein for protective purposes. The correct answer to the question is option C, as forming the medulla is not part of keratinization. Keratinization is important for creating protective layers in skin, hair, and nails.
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Answered by Anonymous | 2025-07-07

Keratinization is the process by which cells in the epidermis (especially in hair and skin) go through changes as they move upward and become filled with keratin .
During this process, the cells may:

Dry out : Yes, they lose moisture and dries out.
Change shape : Yes, they flatten and die.
Form the medulla : No, medulla is the innermost layer of the hair shaft and not all hairs even have a medulla. So this is not a direct result of keratinization.
Form keratin protein : Yes, they form keratin which is a protective protein.

So, the correct option is C .

Answered by Jonaalk | 2025-07-12