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Vitamin D: Chemistry, Functions and Disorders
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Vitamin D: Chemistry, Functions and Disorders
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Vitamin D: Chemistry, Functions and Disorders
Some amount of vitamin ‘D’ is stored in the:
Liver
Heart
Brain
Lungs
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Vitamin D: Chemistry, Functions and Disorders
Actin of vitamin D-3 and calcitriol is inhibited by:
Actinomycin
Actinomycin D
Myosin
Cell membrane
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Vitamin D: Chemistry, Functions and Disorders
Plasma level of phosphate and calcium is controlled by:
Ergosterol
Calciferol
Calcitriol
Ligases enzymes
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Vitamin D: Chemistry, Functions and Disorders
Calcitriol regulates calcium uptake for deposition as calcium phosphate in:
Muscles
Eyes
Tissues
All of above
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Vitamin D: Chemistry, Functions and Disorders
A name, calciferol, initially given to vitamin D, by:
Angus
Hess
Wald
Kuhne
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Vitamin D: Chemistry, Functions and Disorders
Plant’s are rich in:
Vitamin B
Vitamin D-2
Vitamin-D-3
Vitamin C
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Vitamin D: Chemistry, Functions and Disorders
Both sterols i.e. Ergocalciferol and cholecalciferol, having:
extra double bond
methyl group
hydroxyl group
All of above
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Vitamin D: Chemistry, Functions and Disorders
Action of calcitriol is similar to the:
Steroid hormones
Growth hormones
Epinephrine
Intestinal hormones
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Vitamin D: Chemistry, Functions and Disorders
Calcitriol’ is synthesized by ultraviolet rays of sunlight in:
Muscles
Bones
Skin
Lungs
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Vitamin D: Chemistry, Functions and Disorders
Synthesis of calcitriol is:
Controlled by vitamin A
Self-regulated
Controlled by myosin
Controlled by vitamin E
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