which vitamin does sunlight gives
which vitamin does sunlight gives
Homework Answers
Vitamin D.
The precursor for vitamin D is cholecalciferol that is present in the lower epidermis of skin . Vitamin D is synthesized from the chemical reactions from cholecalciferol in the presence of sun light or when our skin is exposed to sunlight. Vitamin D from diet or any other sources are inactivated . Cholecalciferol is converted to 25 hydroxycholecalciferol then to 25 hydroxyergocalciferol then to colcalcitriol or D3. Calcitriol is the active form of vitamin D. Vitamin D cause rickets in children and osteomalacia in adults.
1. Which vitamin does the FDA set limits on for its supplement form? 2. Which vitamin...
1. Which vitamin does the FDA set limits on for its supplement form? 2. Which vitamin does the FDA set limits on for its supplement form? 3. Which vitamin is important with the neural tube development of a fetus during pregnancy? 4. Describe the process of digestion and absorption of vitamin B-12. Include R factor and intrinsic factor in your description.
Which of the following vitamin does not have a known risk of toxicity? Select one: O...
Which of the following vitamin does not have a known risk of toxicity? Select one: O A. vitamin A B. vitamin D O C. vitamin K O D. vitamin E
Which of the following statements about vitamins is FALSE: A. Vitamin E, a cholesterol derivative, can...
Which of the following statements about vitamins is FALSE: A. Vitamin E, a cholesterol derivative, can be synthesized in the skin by sunlight irradiation. B. All of the B vitamins are water-soluble. C. The B vitamins serve as precursors for enzyme cofactors. D. Vitamin C is necessary for the formation of the structural protein collagen.
Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls upon the...
Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls upon the skin, is essential for strong, healthy bones. The bone disease rickets was largely eliminated during the 1950s, but now there is concern that a generation of children more likely to watch TV or play computer games than spend time outdoors is at increased risk. A recent study of 28002800 children randomly selected found 1919% of them deficient in vitamin D. Complete parts a through...
find an item that gives you calcium ,vitamin A and B in one serving.Describe the function...
find an item that gives you calcium ,vitamin A and B in one serving.Describe the function and benefit of this nursing benefit of this nutrient
Explain the effects of skin pigmentation, latitude, sun exposure, age, and sunscreen on vitamin D production...
Explain the effects of skin pigmentation, latitude, sun exposure, age, and sunscreen on vitamin D production by the skin. Which 2 fat soluble vitamins can most easily become toxic when consumed in amounts above the DRI’s? Which fat soluble vitamin is made by the skin after exposure to sunlight? Which fat soluble vitamin is made by bacteria in the small intestine? Do we still need to consume this vitamin from food? What is the main symptom of vitamin K deficiency?
26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K...
26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K
Show transcribed image text 26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K
How does water affect sunlight?
How does water affect sunlight?Blue light typically penetrates deeper than red.Red or blue can penetrate equally depending on pressure an salinityall colors penetrate the same, but their intensity drops with increased depthRed light typically penetrates deeper than blue
The intensity of sunlight hitting the earth is about 1300 W/m2. If sunlight strikes a perfect...
The intensity of sunlight hitting the earth is about 1300 W/m2. If sunlight strikes a perfect absorber, what pressure does it exert? How about a perfect reflector? What fraction of atmospheric pressure does this amount to?
1. Vitamin D deficiency contributes to rickets by which of the following mechanisms? Decreased PTH secretion...
1. Vitamin D deficiency contributes to rickets by which of the following mechanisms? Decreased PTH secretion Decreased calcium absorption from digestion Increased phosphate reabsorption Increased exposure to sunlight 2. True or False: Patients with hypertension usually have less endothelial cell damage at places where the pressure is greatest. True False 3. Which part of the heart is most susceptible to ischemia due to a thrombus in the left coronary artery? Apex AV node Pericardium Right atrium
Which of the following vitamin does not have a known risk of toxicity? Select one: O A. vitamin A B. vitamin D O C. vitamin K O D. vitamin E
26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K
Show transcribed image text 26. Absorption of calcium is improved by which vitamin? a. vitamin C b. vitamin A c. vitamin D d. vitamin K
How does water affect sunlight?Blue light typically penetrates deeper than red.Red or blue can penetrate equally depending on pressure an salinityall colors penetrate the same, but their intensity drops with increased depthRed light typically penetrates deeper than blue
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