What makes up the primary composition of hair?

What makes up the primary composition of hair?

• A. Keratin
• B. Protons
• C. Electrons
• D. Trace minerals

Answer: (A)

Hair is made mostly of keratin, a tough fibrous protein produced by hair follicles. This protein forms long, tightly packed strands that give hair its strength, elasticity, and structure. The cortex—the main part of the hair shaft—contains most of these keratin fibers, while the outer cuticle protects it with overlapping cells. Subatomic particles like protons and electrons aren’t components of hair, and trace minerals appear only in tiny amounts rather than forming the main material. So keratin is the primary composition because it provides the protein framework that makes hair a strong, flexible filament.

Hair is made mostly of keratin, a tough fibrous protein produced by hair follicles. This protein forms long, tightly packed strands that give hair its strength, elasticity, and structure. The cortex—the main part of the hair shaft—contains most of these keratin fibers, while the outer cuticle protects it with overlapping cells. Subatomic particles like protons and electrons aren’t components of hair, and trace minerals appear only in tiny amounts rather than forming the main material. So keratin is the primary composition because it provides the protein framework that makes hair a strong, flexible filament.