Understanding Muscle Burn and Anaerobic Respiration

The video explains the burning sensation in muscles during intense exercise, caused by lactic acid buildup from anaerobic respiration. It contrasts anaerobic and aerobic respiration, highlighting the lower energy yield of the former. The process of fermentation, a type of anaerobic respiration used by yeast, is also covered. Fermentation produces carbon dioxide, which causes bread to rise and gives root beer its fizziness.

What role does carbon dioxide play in the process of fermentation?

Describe how yeast cells contribute to the rising of bread.