What is the function of keratin, an important intermediate filament?
A) reinforces moveable joints
B) enables the heart to contract as a unit
C) provides nutrients to neural cells of the brain and spinal cord
D) imparts impermeability to the skin and the ability to withstand mechanical stress

Question

Quizplus · Accepted Answer

Keratin is an intermediate filament that provides structural support to epithelial cells, such as those in the skin, nails, and hair. It forms a strong, durable, and flexible network that imparts impermeability to the skin and the ability to withstand mechanical stress.

What Is the Function of Keratin, an Important Intermediate Filament