Question

Vitamin D contributes to bone health by maintaining blood calcium and phosphorus levels within the normal range. Unlike any other vitamin, the body can produce vitamin D from exposure to ultraviolet light. From the list below, choose all the correct statements about vitamin D. Select all that apply. a. The liver converts cholecalciferol into the active form of vitamin D. b. Factors that enhance UV-light-mediated vitamin D synthesis include living north of 37° latitude, having darker skin pigmentation, and being obese. c. Vitamin D promotes absorption of calcium and phosphorus from the small intestine. d. Vitamin D decreases calcium reabsorption by the kidneys. e. Vitamin D is necessary for the normal calcification of bone.

          Vitamin D contributes to bone health by maintaining blood calcium and phosphorus levels within the normal range. Unlike any other vitamin, the body can produce vitamin D from exposure to ultraviolet light. From the list below, choose all the correct statements about vitamin D. Select all that apply.

a. The liver converts cholecalciferol into the active form of vitamin D.
b. Factors that enhance UV-light-mediated vitamin D synthesis include living north of 37° latitude, having darker skin pigmentation, and being obese.
c. Vitamin D promotes absorption of calcium and phosphorus from the small intestine.
d. Vitamin D decreases calcium reabsorption by the kidneys.
e. Vitamin D is necessary for the normal calcification of bone.

Added by Tanya T.

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