alleryपराबैंगनी सुर्याच्या उजवाडाक लागून कातीच्या पेशींनी खंयचें जीवनसत्व संश्लेशित जाता?
Aव्हिटॅमिन डी हें द्रव्य
Bजीवनसत्व अ
Cजीवनसत्व ई
Dव्हिटॅमिन सी
Answer & Solution
Correct answer: A. व्हिटॅमिन डी हें द्रव्य
सुर्याच्या उजवाडांतल्या पराबैंगनी B किरणांक लागून उपचर्म कातीच्या थरांतल्या D जीवनसत्वाचें प्रकाशरसायनीक संश्लेशण सुरू जाता.
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