Vitamin A. Vitamin A was the first fat-soluble vitamin identified (in 1913). Vitamin A comprises the preformed retinoids, plus the precursor forms, the provitamin A carotenoids. Preformed retinoids is a collective term for retinol, retinal, and retinoic acid, all of which are biologically active.etinoids are converted to retinol in the intestines and transported with dietary fat to the liver, where it is stored. A special transport protein, retinolbinding protein (RBP), transports vitamin A from the liver to other tissues. Carotenoids are absorbed intact at a much lower absorption rate than retinol.
Mopar is the parts, service and customer care organization within Fiat Chrysler Automobiles. Mopar also designs and builds a small number of customized vehicles. The name derives from a combination of letters from the words MOtor and PARts.
In 2017, Mopar will compete for NHRA World Championship titles in the Funny Car and Top Fuel categories. While Mopar remains involved in a various professional motorsports series, it continues to honor its roots by being a proud supporter of Sportsman racing within the NHRA with its sponsorship of the HEMI Challenge and Moparâs Tom Hoover Sportsman Challenge.