INTEGUMENTERY SYSTEM
INTEGUMENTERY SYSTEM MISCELLENOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Body hair and nails are both made of what?
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Keratin
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Epidermal cells
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Melanin
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Stem cells
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Explanation:
Detailed explanation-1: -Alpha-keratin : Alpha-keratin is in the hair, epidermis, horns and nails of mammals.
Detailed explanation-2: -Fingernails and toenails are made of a tough protective protein called alpha-keratin, which is a polymer. Alpha-keratin is found in the hooves, claws, and horns of vertebrates.
Detailed explanation-3: -Keratin is a fibrous protein which can be classified into two groups: soft keratin and hard keratin. It forms the bulk of cytoplasmic epithelia and epidermal structures. Keratin is abundant in animal hair, nails, wool, horns, and other features [8].
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