Multiple choice

End products of fermentation include ethyl alcohol and

  1. H2O

  2. O2 gas

  3. SO2 gas

  4. CO2

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In brewing, alcoholic fermentation is the conversion of sugar into carbon dioxide gas (CO2) and ethyl alcohol. This process is carried out by yeast cells using a range of enzymes. This is in fact a complex series of conversions, that brings about the conversion of sugar to CO2 and alcohol.