Question

Alcoholic fermentation is brought about by
A. Lactobacillus
B. Saccharomyces
C. Trichoderma
D. Streptomyces

Answer 1

Hint: Fermentation is a metabolic process that is brought by the action of microorganisms. In this process, Microorganisms produce chemical changes in organic food.

Complete Answer:
Alcoholic fermentation: Alcoholic fermentation is also called the ethanol fermentation.
- Alcoholic fermentation can be considered as the anaerobic process.
- This process occurs in the absence of Oxygen.
- It is the biological process which converts sugars such as glucose, lactose, fructose into carbon dioxide, ethanol and energy.
- Here carbon dioxide is a by-product.
- Organisms that brought alcoholic fermentation are yeasts cells ( Saccharomyces, Schizosaccharomyces).

Uses of alcoholic fermentation:
There are many uses of alcoholic fermentation. Some of them are-
- Alcoholic fermentation is widely used for the production of alcoholic beverages such as wine from fruit juices and beer from grains.
- Alcoholic fermentation is also used in making bread. When the ingredients of bread and yeast combine to form a dough, yeast breakdown these food substances and give off carbon dioxide which makes the dough rise.
- Alcoholic fermentation is also used to add flavor or preserve dairy products and vegetables.
Therefore, from the above discussion, it is clear that the Alcoholic fermentation is brought about by Saccharomyces, which is a yeast.

Hence, the option B is the right answer for this question.

Note: The ethanol produced from the process of alcoholic fermentation can be used as a biofuel. As it is biofuel so it can help to reduce pollution caused by the other fuels such as petrol, diesel, etc.