Definition of tae kwon do for English Language Learners. : a style of fighting that originated in Korea and that uses kicks and punches but no weapons. Britannica.com: Encyclopedia article about tae kwon do.
It is also used in the baking process as a leavening agent; yeast releasing gas into their environment results in the spongy-like texture of breads and cakes. Because of its role in fermentation, humans have known about and used Saccharomyces cerevisiae for a long time.
Best Answer: When yeast ferments, it breaks down the glucose (C6H12O6) into exactly two molecules of ethanol (CH3CH2OH) and two molecules of carbon dioxide (CO2). Ethanol fermentation (performed by yeast and some types of bacteria) breaks the pyruvate down into ethanol and carbon dioxide. just now. Asker's rating. Report Abuse. A process known as glycolysis (better known as fermentation), allows they yeast to get energy by splitting a glucose molecule and converting it into ethanol (alcohol) and CO2 (gas which causes bread to rise).