Biology: Keratin and Healthy Nails
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Questions and Answers

What is the primary function of keratins in nails?

  • To provide color to the nail
  • To aid in nail growth rate
  • To form the major structural component of nails (correct)
  • To provide a protective barrier

Where are keratins 5 and 17 expressed in the nail?

  • Throughout the nail bed (correct)
  • In the hyponychium
  • In the eponychium
  • In the cuticle

What is the function of keratin 10 in the nail?

  • To provide flexibility to the nail
  • To provide strength to the nail
  • To contribute to adhesion and barrier function (correct)
  • To aid in nail growth

What is the unique structure of keratin proteins?

<p>Long, coiled chains of amino acids arranged in a specific way (D)</p> Signup and view all the answers

What is the benefit of the unique structure of keratin proteins?

<p>It provides both strength and flexibility to the nail (C)</p> Signup and view all the answers

How is the nail plate formed?

<p>Keratinocytes in the nail bed produce keratin that gets pushed forward, hardens, and forms the visible nail plate (A)</p> Signup and view all the answers

Why is adequate protein intake crucial for healthy keratin production?

<p>To provide essential amino acids for keratin production (B)</p> Signup and view all the answers

What can disrupt keratin structure and lead to brittle or weak nails?

<p>Chemical exposure, excessive moisture, or trauma (C)</p> Signup and view all the answers

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