Question

by which process does yeast produce the carbon dioxide responsible for bread rising

dehydration synthesis
cellular respiration
glycolysis
photosynthesis

Answer 1

Yeast produces the carbon dioxide responsible for bread rising primarily through the process of **cellular respiration**, specifically **fermentation**. During fermentation, yeast converts sugars into alcohol and carbon dioxide anaerobically (without oxygen). This carbon dioxide gas gets trapped in the dough, causing it to rise.

So, the most accurate answer from your list would be **cellular respiration**.