<prompt> Limiting amino acid in wheat-MethionineTryptophanLysineAlanine  <response>: Ans. is c i.e., Lysine Amongst cerealso Highest protein content-Wheato Highest fat content-Maizeo Highest carbohydrate-Riceo Highest vitamin B complex-Maizeo Limiting amino acids in wheat - Lysine threonineo Limiting amino acids in maize - Tryptophan lysineo Maize contains excessive leucine which is pellagrogenic as it interferes conversion of tryptophan into niacin. 