<prompt> Poor wound healing in vitamin C deficiency is due to all except -Inhibition of collagen synthesisDefective collagen synthesisDefective post-translational modification of collagenDefective hydroxylation  <response>: Ans. is a Inhibition of collagen synthesisAscorbic acid Vitamin C is also called antiscorbutic factor. It is very heat labile, especially in basic medium. Ascorbic acid itself is an active form. Maximum amount of vitamin C is found in adrenal coex.Ascorbic acid functions as a reducing agent and scavanger of free radicals antioxidant. Its major functions arevitamin C is essential for the conversion of procollagen to collagen, which is rich in hydroxyproline and hydroxylysine. Through collagen synthesis, it plays a role in the formation of matrix of bone, cailage, dentine and connective tissue.Vitamin C is required for post-translational modification by hydroxylation of proline and lysine residues conveing them into hydroxyproline and hydroxylysine. 