The protein keratin which is found in hair and nails and affords nails their rigid structure would be categorized as which of the following protein shapes?

Name: The protein keratin which is found in hair and nails and affords nails their rigid structure would be categorized as which of the following protein shapes?
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Keratin is a fibrous protein, which means it has a long, narrow shape, typically forming fibers or sheets. This is in contrast to globular proteins, which are more rounded in shape.

The Protein Keratin Which Is Found in Hair and Nails