Well Yeast eats, just like us. They eat sugar. Just like us they build up gas and release as what we call methane (aka commonly known as farting,medical term flatulence)
The sugar they eat builds gas up and releases it as Carbon Dioxide.
does it need alcohol?
No, yeast needs warmth, moisture and some form of sugar.
the yeast creates carbon dioxide as a waste product during fermentation - the process that creates alcohol and causes bread to rise.
By its cellular anatomy of course!
It changes the fermentaion and glycolysis process!
when the dough is baked, the yeast cells release carbon dioxide, creating pockets in the pastry.
Yes Carbon Dioxide Bubbles
Yeast release carbon dioxide to make bread rise.
Yeast are tiny animals. When they eat, they release carbon dioxide. That "inflates" the dough.
boot boot
Yes Yeast converts or "feeds" on the carbohydrates that flour and sugar provide into carbon dioxide gas. This process allows your bread to rise
Yeast produces carbon dioxide.
When glucose is added to yeast in solution, the enzymes inside it turn the mixture into ethanol and carbon dioxide, so, for your question, carbon dioxide. It also respires normally (aerobically) and then too produces carbon dioxide.
Yeast produces CO2 gas and sometimes ethenol when it metabolizes sugar.
Carbon dioxide
The ingredient in bread that produces carbon dioxide is yeast.
The gas produced by baking bread is called Ozone. It is a poisonous gas, if a lot is inhaled, but the little bit made when bread is baked is not harmful.
The sugar is needed as food for the yeast. The yeast gives off carbon dioxide as it digests the sugar. The carbon dioxide could be used to inflate the balloon. Without the sugar, the yeast remains dormant and does not give off carbon dioxide.
Yeast will respire the sugar causing the yeast to give off Carbon Dioxide.