Most of them are proteins but there are some RNA and\or DNA enzymes or maybe glycopeptides.
B. Crops are modified genetically as well
<span>The gustatory sense is dependent on B. chemical stimulation.
Gustatory sense is the taste sense - so different types of chemicals found in the food we eat or the liquids we drink make an impact on our taste sense, which is why we can feel different types of flavors. </span>