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Microbes in Human Welfare - Class XII Biology Quiz

Class XII
Biology
Microbes in Human Welfare
10 questions
HARD

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1. Which of the following microbes is primarily used in the production of vinegar?

Lactobacillus · Acetobacter · Saccharomyces · Rhizobium

2. What is the role of Rhizobium in agriculture?

Nitrogen fixation · Phosphate solubilization · Cellulose degradation · Biodegradation

3. Which of the following is a product of fermentation by yeast?

Lactic acid · Ethanol · Acetic acid · Butyric acid

4. Which microbe is used in the production of antibiotics?

Bacillus subtilis · Penicillium notatum · Escherichia coli · Streptococcus thermophilus

5. Which of the following is NOT a method of microbial fermentation?

Aerobic fermentation · Anaerobic fermentation · Lactic acid fermentation · Photosynthetic fermentation

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