Which of the following vitamins is/are associated with neurotransmitter synthesi

Question

Which of the following vitamins is/are associated with neurotransmitter synthesis? a. Vitamin C b. Vitamin A c. Vitamin B12 d. More than one answer is correct Which vitamin D molecule would you expect commonly to see in fortified foods? a. ergocalciferol - vitamin D_2 b. calcidiol - 25-OH D_3 c. calcitriol 1, 25-OH_2 D_3 d. cholecalcifcrol - vitamin D_3 c. all of the above forms are commonly seen in fortified foods Which of the following is an early symptom of vitamin A deficiency? a. Poor dark adaptation b. Xerosis c. Kcratomalacia d. Bitot's spot Which vitamin directs cellular differentiation of epithelial cells? a. Vitamin E b. Vitamin K c. Vitamin A d. The correct answer is not shown Selenium is important in regulation of scrum thyroxin hormone. a. True b. False Which of the following minerals enhances insulin activity? a. Selenium b. Iron c. Chromium d. Nickel Match each ultratrace mineral with its associated enzyme. Manganese Molybdenum Copper Selenium a. Xanthine dehydrogenase b. Mitochondrial SOD c. Glutathione peroxidase d. Ccruloplasmin A deficiency of which of the following minerals may cause dental a. Boron b. Fluoride c. Silicon d. Arsenic

Explanation / Answer

6 d vitamin c is important for acetylcholine synthesis. Vitamin B12 iabused for the synthesis of a number of neurotransmitters like acetylcholine, GABA

7 a, d vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Both forms raise 25-hydroxy vitamin D levels, vitamin D3 may be more than three times as effective at maintaining those levels for a longer period of time.

8) c Thinning and ulceration of the cornea on the surface of the eyes ie keratomalacia is an early symptom of vitamin A deficiency. Vitamin A is required for maintainence of the specialized epithelium of cornea.

10 True. Selenium is required for T4 to T3 conversion and also for protection from peroxide damage to the cells due to production if peroxide in the gland

11)c Chromium acts a regulator of blood sugar by allowing cells to utilize insulin more effectively. It is beneficial for people with glucose intolerance, hypoglycemia, , and diabetes.

16 ) b Fluoride. It is am important part essential fro the structural integrity of the tooth and hence a deficiency can cause caries

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