Final answer:
The shape of dough, whether round or square, does not influence its ingredients. Both forms contain the same components, such as flour, water, and sourdough, if the recipe is followed identically. The question appears to stem from a joke or riddle rather than a real difference in recipes.
Step-by-step explanation:
The question seems to be a play on words rather than a serious inquiry about actual ingredients in dough. Round dough and square dough would contain the same ingredients if the recipe is the same; the shape does not affect the content of the dough. The ingredients listed, such as flour, water, sourdough, salt, wheat germ, and semolina, would be included in both round and square doughs used for making bread. It sounds like the student may be referring to a joke or riddle. The answer would be that there is no ingredient that round dough gets that square dough doesn't provided the recipe is the same.