Like all batteries, eventually it gets depleted and needs to be replaced; this can be expected to happen after 5-10 years, depending on system usage. CMOS checksum error (and similar messages) or the system clock being reset are classic signs of the battery having been depleted. The BIOS settings contain several system-critical values.
In order to grow, yeast need glucose (C 6 H 12 O 6) or sucrose (table sugar, C 12 H 22 O 11), water (H 2 O) and warm temperatures. As yeast digest sugar, they turn into alcohol. In the process they give off carbon dioxide (CO 2) gas. The alcohol dissolves in the water and the gas escapes into the air. Yeast is used to make bread.
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).