What can the ethanol distilled from the fermentation product be used as?
Fuel in motor vehicles.
2 of 13
What are biofuels made from?
Natural products.
3 of 13
What are to types of biofuel?
Ethanol-based fuels and biogas.
4 of 13
What is the role of microorganisms join the production of ethanol?
Microorganisms respire anaerobically to produce the ethanol, using sugars from crops as the energy source.
5 of 13
How is glucose produced during ethanol production?
Glucose is produced from maize starch by the action of a carbohydrase.
6 of 13
How are the glucose and sugar cane juices used to produce ethanol.
They can be fermented by yeast to produce ethanol.
7 of 13
How is the ethanol extracted?
By the process of distillation.
8 of 13
What could ethanol be used for in the future?
Ethanol could be used as a fuel to replace fossil fuels in the future.
9 of 13
What would be the benefits of using ethanol to replace fossil fuels in the future?
In terms of the 'greenhouse effect' using ethanol as a fuel is much more 'carbon friendly'.
10 of 13
What term is used to describe ethanol because only the carbon dioxide used for photosynthesis by the crops is returned to the atmosphere when the ethanol is burned?
Carbon neutral.
11 of 13
What are the processes involved in producing ethanol from starch?
Digestion of starch to sugar by carbohydrase, fermentation (anaerobic respiration) by yeast and distillation.
12 of 13
How is ethanol extracted from the fermenter?
By distillation.
13 of 13
Other cards in this set
Card 2
Front
What can the ethanol distilled from the fermentation product be used as?
Back
Fuel in motor vehicles.
Card 3
Front
What are biofuels made from?
Back
Card 4
Front
What are to types of biofuel?
Back
Card 5
Front
What is the role of microorganisms join the production of ethanol?
Comments
No comments have yet been made