Most vitamins can be classified as either fat soluble, which results in their tendency to accumulate in the body (so that taking too much can be harmful), or water soluble, which results in their tendency to be quickly eliminated from the body in urine. Examine the structural formulas and space-filling models of these vitamins and determine whether each one is fat soluble (mostly nonpolar) or water soluble (mostly polar).

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HO \ HO. каза CH, HC CH₂ c=0 c=c HO (a) vitamin C OH H3C CH3 H2C H2C, CH₂ CH CH CH3 CH3 CH CH (b) vitamin A CH CH3 CH CH₂ OH