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Why is collagen insoluble?
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4. Protein Structure
Fibrous and Globular Proteins
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Which fibrous protein is the primary structural component of human hair?
A
Keratin
B
Collagen
C
Elastin
D
Albumin
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Understand that fibrous proteins are structural proteins that provide support and strength to cells and tissues.
Recall that keratin is a fibrous protein known for its role in forming hair, nails, and the outer layer of skin.
Recognize that collagen is another fibrous protein but primarily found in connective tissues like tendons, ligaments, and skin, not hair.
Note that elastin provides elasticity to tissues such as skin and blood vessels, but is not a major component of hair.
Identify albumin as a globular protein mainly found in blood plasma, not a fibrous structural protein in hair.
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