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Microbes in Human Welfare - Class XII Biology Quiz

Class XII
Biology
Microbes in Human Welfare
14 questions
HARD

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1. Which of the following is NOT a role of microbes in human welfare?

Biodegradation · Nitrogen fixation · Photosynthesis · Fermentation

2. Which microbe is primarily used in the production of yogurt?

Lactobacillus · Streptococcus · Bacillus · Escherichia

3. What is the primary function of Rhizobium in agriculture?

Decomposing organic matter · Nitrogen fixation · Pathogen control · Soil erosion prevention

4. Which of the following is a biotechnological application of microbes?

Production of antibiotics · Soil fertility enhancement · Water purification · Plant growth promotion

5. Which process involves the use of yeast for alcohol production?

Fermentation · Photosynthesis · Respiration · Decomposition