What is the function of melanin in the body?

• A. Regulate body temperature
• B. Provide structure to hair
• C. Protect against UV radiation
• D. Promote healing

Answer: (C)

The function of melanin in the body primarily involves its role in protecting against UV radiation. Melanin is a pigment produced by melanocytes in the skin, hair, and eyes, and its main purpose is to absorb and dissipate ultraviolet light from the sun. This protective mechanism reduces the risk of DNA damage in skin cells, which can lead to skin cancer and other harmful effects associated with excessive UV exposure.

In addition to its protective role, melanin contributes to the pigmentation of the skin, eyes, and hair, which plays a part in their overall health and appearance. By effectively absorbing UV rays, melanin provides a natural defense against the harmful effects of sun exposure, helping to maintain skin integrity and health. This is crucial for individuals who may be more susceptible to sun damage.

Thus, recognizing the significance of melanin in safeguarding the body from ultraviolet radiation highlights its essential role in biological protection and overall skin health.