What Protein Makes Stratified Epithelial Tissues Tough and Resistant to Friction

Question

What protein makes stratified epithelial tissues tough and resistant to friction?
A)elastic
B)collagen
C)reticular
D)keratin

Accepted Answer

Stratified epithelial tissues are often found in areas of the body that are subject to mechanical stress and friction. Keratin is a fibrous protein that makes up the bulk of the outer layer of skin, as well as hair and nails. Keratin provides strength and durability to these structures, making them tough and resistant to wear and tear. Therefore, keratin is the protein that makes stratified epithelial tissues tough and resistant to friction.