Human skin pigmentation response: Why does skin become darker after excess sun exposure? Identify the specific pigment that increases following UV exposure. Choose the correct pigment.
General Knowledge
Biology
Difficulty: Easy
Choose an option
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AMelanin
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BCarotene
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CHemoglobin
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DBilirubin
Answer
Correct Answer: Melanin
Explanation
Concept / ApproachUV exposure stimulates melanocytes to produce more melanin, which darkens the skin and helps protect underlying tissues from UV damage.
Why others are incorrectCarotene is a dietary pigment; hemoglobin colors blood; bilirubin is associated with jaundice.
Final AnswerMelanin.