What is Skin For?

Human skin, though seemingly delicate, acts as a protective barrier similar to animal scales. It is composed of keratin, the same protein found in pangolin scales. Skin cells are continuously produced and migrate to the surface, where they transform into a protective layer. This layer, made of dead cells, forms a waterproof barrier against microbes. While skin protects against microscopic threats, the brain helps avoid larger dangers.

What protein is responsible for the formation of human skin scales?

• Collagen

• Keratin

• Elastin

• Melanin

How many new skin cells are produced every second?

• 500

• 2000

• 100

• 1000

What happens to skin cells as they reach the surface of the skin?

• They change color

• They destroy themselves and form a protective shield

• They become softer

• They multiply rapidly

What is the primary function of the outermost layer of skin?

• To sense touch

• To produce vitamin D

• To provide a waterproof barrier

• To regulate body temperature

What role does the brain play in protecting humans from larger threats?

• It changes skin color

• It produces more skin cells

• It helps avoid predators

• It thickens the skin