INTEGUMENTERY SYSTEM
INTEGUMENTERY SYSTEM MISCELLENOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Melanin
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Keratin
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Carotenoids
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Melatonin
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Detailed explanation-1: -Melanin protects skin from the sun’s ultraviolet rays. These can burn the skin and reduce its elasticity, leading to premature aging.
Detailed explanation-2: -The large system of freely-moving (delocalized) electrons that gives melanin its color is also what allows it to absorb UV light.
Detailed explanation-3: -Melanin helps protect the cells of the epidermis, or outer layer of the skin, from UV light. This protection extends to all forms of UV light (UVC, UVB, and UVA) as well as blue light. It does this by absorbing the UV light before it’s able to damage the sensitive DNA of the skin cells.
Detailed explanation-4: -Melanin helps block out damaging UV rays up to a point, which is why people with naturally darker skin are less likely to get sunburned, while people with lighter skin are more likely to burn. Sunburns can increase your risk of skin cancer, including melanoma.