INTEGUMENTERY SYSTEM
INTEGUMENTERY SYSTEM MISCELLENOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is produced by some skin cells in the presence of sunlight, which is healthy for us?
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Vitamin D
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Perspiration
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Oil
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Vitamin C
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Explanation:
Detailed explanation-1: -The skin is responsible for producing vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the epidermis and photolyzes provitamin D3 to previtamin D3.
Detailed explanation-2: -The skin uses sunlight to help manufacture vitamin D, which is important for normal bone formation.
Detailed explanation-3: -Vitamin D3 is produced in the skin from 7-dehydrocholesterol by UV irradiation, which breaks the B ring to form pre-D3.
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