The gas, carbon dioxide, forms bubbles in the bread dough, making it "rise".
co2 a.ka. Carbon dioxide
Carbon Dioxide.
Baking of bread(releasing of co2 to make bread rise) Production of alocohol
it make the bread rise up in the oven
its made of wheat and it uses anaerobic respiration trust me im afghan
This is anaerobic respiration i.e. respiration in the absence of oxygen
Aerobic (used to make bread) and anaerobic (used to make alcohol).
You're doing exactly the same homework as me, aren't you?
When yeast undergoes anaerobic respiration, it gives off Carbon dioxide (CO2) and Ethanol. The Ethanol is used in alcohol production, bread making, gasohol etc.
When yeasts are used to make bread and for brewing, their ability to respire anaerobically makes them useful. They produce the alcohol for the beer/wine, and the CO2 for the baking. The CO2 makes the bread or pastry rise; the alcohol evaporates during the baking process
Yeast produces CO2 gas and sometimes ethenol when it metabolizes sugar.
Fermented bread contains yeast. During anaerobic respiration, the yeast produces CO2 as a byproduct of fermentation; the CO2 makes the bread rise. Without yeast, there is no fermentation- no CO2 is produced, and the bread does not rise.
Humans cannot respire anerobically however, during stressed instances such as excessive running where not enough oxygen is entering the body, glucose can be broken down in the absence of oxygen forming lactic acid which is the reason why you feel a burning sensation after a long sprint/jog. Eventually when you stop and start your regular paced breathing, the oxygen debt is paid and lactic acid concentrations decline.
One way this is used in industry to to make beer and for domestic use to make bread. Although both beer and bread making can be done both on a large scale (industry) or in a small scale (home).