Which of the Following Statements Indicates the Way in Which

question 103

Multiple Choice

Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?

• A) The skin is protected by increasing the number of epidermal dendritic cells, which help to activate the immune system.
• B) Carotene, which accumulates in the stratum corneum and hypodermal adipose tissue, is synthesized in large amounts in the presence of sunlight.
• C) The skin is protected by the synthesis of three pigments that contribute to the skin's color.
• D) Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen.

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Definitions:

Amines

Organic compounds composed of nitrogen atoms bonded to alkyl or aryl groups, behaving as bases.

Cyclohexylamine

A primary amine derived from cyclohexane, noted for its use in the production of pharmaceuticals and corrosion inhibitors.

NMR Spectroscopy

A technique that uses nuclear magnetic resonance to determine the molecular structure of organic compounds by observing the interaction of atomic nuclei with radio waves.

N-H Functionally

Refers to compounds containing nitrogen-hydrogen bonds that have distinct properties or roles in chemical reactions, often related to base or nucleophile behavior.