Question

which of the following are main functions of the skin?
select all that apply
a to absorb uv light and protect the skin
b to make vitamin d
c to prevent water loss from the body
d to keep microorganisms out of the body

Explanation:

• Option a: Melanin in the skin absorbs UV light, protecting deeper skin layers.
• Option b: Skin cells can convert a cholesterol - related molecule into vitamin D when exposed to UVB rays.
• Option c: The stratum corneum of the skin acts as a barrier to prevent excessive water loss from the body.
• Option d: The skin forms a physical barrier that keeps many microorganisms out of the body.

Answer:

A. to absorb UV light and protect the skin, B. to make vitamin D, C. to prevent water loss from the body, D. to keep microorganisms out of the body