Yes.
Yeast exhales CO2 as it breathes, therefore the bubbles formed are likely to be CO2.
you can not measure gas of yeast
It is grown as yeast is a kind of fungus.
Gas can be formed in various ways, such as through biological processes (like fermentation in yeast or bacteria) or chemical reactions (such as when acids react with metals). When gas bubbles form and rise to the surface of a liquid, it's due to the lower density of the gas compared to the liquid, causing it to "bubble up."
Yeast will produce gas if sugar, water, and warmth are available as long as the yeast is still alive. If it is too old or has been too hot and the yeast has died it won't create the gas.
No, combining yeast with sugar will not produce gas. Yeast must be dissolved in water with starch or sugar in order to begin fermentation producing CO2 gas.
Bread is not "formed" by microorganisms. However, yeast is added to bread dough as leavening. The yeast, consisting of many billions of microorganism, consume and digest sugars in the dough which produces gas. The gas bubbles cause the bread dough to expand or "rise."
sugar helps the most
It isn't, it's added
Yeast releases carbon dioxide.
When yeast is mixed with dough, it ferments the sugars present in the dough, producing carbon dioxide and alcohol. The carbon dioxide gas gets trapped in the dough, causing it to rise and develop a light, airy texture. This process also contributes to the flavor and aroma of the baked bread. The new material formed is essentially a leavened dough, which is the result of the fermentation process initiated by the yeast.
Yeast eats the sugar in the syrup. It then poops out co2 and alcohol. The carbon is a byproduct that comes from the yeast after eating sugars.