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Sunlight helps the human body to manufacture vitamin D. In that sense one can say that solar radiation contributes to vitamin D. It does not have vitamin D, though.
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∙ 13y ago
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Which of these is not a reason to avoid UV radiation?
uv radiation destroys vitamin D
What is vitamin manufactured in skin?
Vitamin D has two forms which are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D without a subscript refers to either D2 or D3 or both.Vitamin D3 is produced in the skin of vertebrates after exposure to ultraviolet B light.
If UV light is required for Vitamin D production does this make UV a Vitamin D precursor?
No UV light can not be treated as vit D precursor as it only provides the energy in the form of radiation for the reaction to take place. It is the steroid molecule present in dermis which is precursor for vitD synthesis.
Which vitamin provides for the absorption of calcium and phosphorus by bones and teeth?
Vitamins A , C and D. Calcium also helps
What does the D stand for in vitamin D?
The term "vitamin D" refers to several different forms of this vitamin. ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3). Vitamin D2 synthesized by plants. Vitamin D3 is synthesized by humans in the skin. D is the fourth letter in the Latin alphabet and the vitamin D was the fourth vitamin discovered.
What vitamin is synthesized in the skin with exposure to the sunlight?
Vitamin D is produced by ultraviolet radiation on your skin. The UV light converts a precursor molecule to vitamin D.
Which of these is not a reason to avoid UV radiation?
uv radiation destroys vitamin D
Is there a vitamin that formed from exposure to uv radiation?
d
Which does not belong vitamin D cholesterol UV radiation or keratin?
Hemoglobin
Is vitamin d production a function of the skeletal system?
No, it does not produce vitamin D.
Is jade stone the source of vitamin d?
No, vitamin D is not from jade stone. Vitamin D is an animal product. Good food sources of vitamin D are milk, eggs, fish, beef, etc. We can also produce vitamin D in our skin when it is exposed to ultraviolet radiation (usually from the sun).
What is the only vitamin produced naturally?
Vitamin D. It is produced in small quantities when the skin is exposed to natural sunlight and UV radiation.
Does melanin help in calcium absorption?
No, melanin protects the skin from ultraviolet radiation. Vitamin D is synthesized in the skin and help with calcium absorption.
What is vitamin manufactured in skin?
Vitamin D has two forms which are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D without a subscript refers to either D2 or D3 or both.Vitamin D3 is produced in the skin of vertebrates after exposure to ultraviolet B light.
Where in the body in Vitamin D produced and what molecule is it modified from?
Vitamin D is produced in the skin, on exposure to UV (ultravoilet) radiation, from a modified cholesterol molecule; necessary for normal bone growth and function.
Which term does not belong in the group vitamin D cholesterol UV radiation or keratin?
I think the answer would be Vitamin D because the rest of the choices are characteristics of hair (cholesterol is what makes hair look/ appear oily; UV radiation is what hair protects your scalp from; and keratin [particularly dead keratin] is what your hair is made of) .... Whereas with vitamin D is what the skin produces and doesn't have any involvement with hair.
Does having low calcium affect the absorption of vitamin d?
No. It, in fact, is the opposite. Vitamin D is absorbed in the intestine, converted by UV radiation in the skin, and then helps absorb Calcium into the body. Vitamin D deficiency can be caused by a few things, a diet low in Vitamin D, low sun exposure, or it could be caused by a tumor in the parathyroid gland (but if you have low Calcium, that is not possible).
