it expands Well it gives off CO2 but does it then die or does it respire more quickly?
Yes as it bakes the yeast will die
Yeast
It is true that yeast bread can be baked in a microwave oven. However, the results are not always good.
I'm guessing yeast.
oven and yeast
Yeast, which is used in breads is your answer. While the bread it's in must be baked in an oven, the yeast itself can not be baked alone. Yeast also must be stored in a cool, dark place and kept out of bright sun, which will kill the yeast.
its a drink then nothing happens Note - Yeast never turns into alcohol, yeast turns sugar into alcohol, thus alcohol is the yeast's waste product of metabolism.
it make the bread rise up in the oven
In a very hot oven with steam injectors
No yeast does not use up the carbohydrates, but it does consume some of them to generate the carbon dioxide to cause the dough to rise before the heat of the oven kills the yeast.
If a strawberry is placed in a hot oven, it will cook.
it cooks and if left long enough in the oven it burns. only if the oven is on.