Which part of sunlight initiates the conversion of 7-dehydrocholesterol to previtamin D3 in human skin?
Question and options
Which part of sunlight initiates the conversion of 7-dehydrocholesterol to previtamin D3 in human skin?
Infrared
Visible light
Ultraviolet A
Ultraviolet B
Answer and explanation
Correct answer: D - Ultraviolet B
Ultraviolet B radiation initiates vitamin D3 production by converting 7-dehydrocholesterol in the skin into previtamin D3. Previtamin D3 subsequently forms vitamin D3.
Practice for these exams
-
Haryana Judicial Services
-
Bihar Judicial Services
Subject revision
-
Uttarakhand Judicial Services
Subject revision