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Vitamins answers

1. Vitamin K1 is a large non-polar hydrocarbon molecule so will be fat-soluble as it can form London dispersion forces of attractions to non-polar lipids. Because it is non-polar it will be water-insoluble.2. Source of vitamin B12 (also called cobalamin): only from certain B12 producing bacteria.Essential mineral: cobalt.Function: cell metabolism (especially DNA formation).Deficiency: pernicious anaemia

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