Yeast powder belongs to a single-celled fungus, in the process of flour can be broken down into carbon dioxide and water in the sugar in the flour, the resulting gas makes the dough full of bubbles, is a natural leavening agent, can be used to make fritters, but because the fritters need to be very fluffy, and baking powder can make the fritters more fluffy in a short period of time, it's a very good bulking agent, life is often people used to make fritters, so it would be better to consume baking powder as opposed to yeast.