Routes to ethanol Fermentation

Question 1

Alcohol has been produced by fermentation of sugars for thousands of years.

Answer 1

Sugar from fruit or grains such as wheat and barley is mixed with yeast and water, which produces ethanol and other compounds.

Question 2

The yeast cells contain an

Answer 2

enzyme

Question 3

Fermentation equation

Answer 3

C6H12O6 → 2C2H5OH + 2CO2

Question 4

Fermentation involves mixing a glucose solution with yeast in a….. what conditions

Answer 4

sealed container and warming.

and enzyme yeast

Question 5

Fermentation advantages

Answer 5

Renewable raw material, lower energy demand, carbon neutral, sustainable

Question 6

Fermentation disadvantages

Answer 6

Lower atom economy, batch process, labour intensive, land could be used for crops, weather dependent.