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InterviewSolution
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The vitamin which is water-soluble and is an anitoxidant isA. vitamin EB. vitamin CC. vitamin `B_(1)`D. vitamin D |
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Answer» Correct Answer - B Vitamin `C` is also called ascorbic acid. It is believed to cure common cold. Citrus fruits are a good source of vitamin `C`. Scurvy is caused due to the deficiency of ascorbic acid which does not possess a carboxy group but contains a five membered lactone, ring Vitamin `C`, a water soluble vitamin, is as an antioxidant because it acts as a free - radical inhibitor in a human body. All the water- soluble vitamins function as coenzymes except vitamin `C`. vitamin `C` is required by a living body in farily high amount and most mammals except human and guniea pig are albe to synthesize it. Vitamin `E` is fat - soluble and is an antioxidant as it also acts as a free-radical inhibitor in a human body. The chemical name of vitamin `E`, which does not function as a coenzymes, it tocopherol. Deficiency of vitamin `E` cases sterility. Vitamin `C` traps radicals formed in aqueous environment while vitamin `E` traps radicals formed in nonpolar environment. Vitamin `B_(1)` is also known as thiamine of anitneutirc factor. Beriberi is casued due to the deficiency of vitamin `B_(1)` which contains both `N` and `S`. Note that vitamin `B_(2)` contains only nitrogen. Rice coverings or husks are rich in Vitamin `B_(1)`. Vitamin `D`, fat-soluble vitamin, regulates the metabolism of calcium and phosphate. Deficiency of vitamin `D` in human i.e., the deficiency fo vitamin `D` causes rickets. Excess of vitamin `D` in human body causes calcification of soft tissues particularly in the kidneys. Vitamin `D` is formed in the skin as a result of photochemical reactions of 7 - dehydrocholesterol casued by the ultraviolet rays from the sun.. |
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