By which process does yeast produce the carbon dioxide responsible for bread rising? o cellular respiration
O glycolysis
O dehydration synthesis
O photosynthesis

The correct answer is - cellular respiration.

Explanation:

Bread rising is due to the production of carbon dioxide by yeast in both aerobic and anaerobic cellular respiration. If there is a presence of oxygen, yeast performs aerobic respiration and produce carbon dioxide from sugar or other sources of carbohydrates.

In absence of oxygen, yeast performs anaerobic respiration or undergo fermentation to produce carbon dioxide and alcohol as waste products.

Thus, the correct answer is - cellular respiration.