Question

The process of conversion of sugar into alcohol is called

• A. Nitrogen fixation
• B. Moulding
• C. Fermentation
• D. Infection

Answer 1

The correct option is C

Fermentation

The correct option is (C):
Explanation for the correct option:

1. The process to convert sugar into alcohol and carbon dioxide is called fermentation.
2. Fungi and bacteria are the microbes capable to perform fermentation.
3. Reaction- Glucose $\stackrel{\mathrm{Without}\mathrm{oxygen}}{\to }$Alcohol + Carbon dioxide + Energy

Explanation for the incorrect options:
Option (A):

1. Some bacteria like Rhizobium have the capability to convert the atmospheric nitrogen into the usable forms like ammonia, nitrates or nitrites.
2. This overall mechanism is known as nitrogen fixation.

Option (B):

1. Moulding is the process of converting any liquid or substance into a specific shape.

Option (D):

1. Infection can be defined as the invasion of the foreign microbe into the body which causes illness.

Final answer: The process of conversion of sugar into alcohol is called fermentation.