When You Get a Suntan,why Does It Soon Fade Away

question 16

Multiple Choice

When you get a suntan,why does it soon fade away if you do not consistently spend time in the sun?

• A)The melanin breaks down if not kept warm
• B)The melanin is absorbed at a constant rate and you have to build it up faster than it is absorbed
• C)"Tanned" cells are eventually sloughed off (although melanin is produced in living stem cells that continue to divide,half the melanin is lost into each daughter cell that dies and is pushed to the surface)
• D)Sunlight suppresses the lighter skin pigments and they can again return to mask the melanin
• E)Ultraviolet radiation destroys melanin

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Definitions:

Benzene

A cyclic hydrocarbon with the formula C6H6, characterized by a ring of six carbon atoms and notable for its aromatic properties.

Necessary Reagents

Necessary reagents are the essential chemicals or substances required to carry out a specific chemical reaction.

Major Organic Product

The most abundant product resulting from an organic reaction, reflecting the preferred pathway due to factors like stability and reaction conditions.

Gatterman-Koch Formylation

A chemical reaction that introduces an aldehyde group into aromatic compounds using carbon monoxide, hydrochloric acid, and a Lewis acid catalyst.