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Microbes in Human Welfare — Syllabus

Madhya Pradesh Board · Class 12 · Biology

What Microbes in Human Welfare covers in Madhya Pradesh Board Class 12 Biology: 4 topics, for the 2026-27 session.

50 questions108 flashcards5 concepts

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An infographic illustrating the different types of microbes (bacteria, fungi, viruses, protozoa, prions) with representative examples and their general characteristics or shapes.
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4 Topics · Madhya Pradesh Board Class 12 Biology · 2026-27

Topics in Microbes in Human Welfare

1

Microbes in Household Products

  • Lactobacillus and other lactic acid bacteria (LAB) grow in milk and convert it into curd.
  • LAB produce acids that coagulate and partially digest milk proteins during curd formation.
  • A small amount of curd added to fresh milk as a starter contains millions of LAB and helps rapid curd formation at suitable temperature.
2

Microbes in Industrial Products

  • Industrial-scale microbial production is done in large vessels called fermentors.
  • Yeast, especially Saccharomyces cerevisiae, is used for commercial production of ethanol.
  • Wine and beer are produced without distillation.
3

Microbes in Sewage Treatment

  • Sewage is municipal waste-water containing large amounts of organic matter and pathogenic microbes.
  • Sewage cannot be discharged directly into rivers and streams.
  • Sewage treatment is carried out in two stages: primary treatment and secondary treatment.
4

Microbes in Production of Biogas

  • Biogas is a mixture of gases containing predominantly methane, produced by microbial activity and used as fuel.
  • Certain bacteria grow anaerobically on cellulosic material and produce methane, carbon dioxide, and hydrogen.
  • These bacteria are called methanogens.

Key Concepts

Central concept: Uses of microbes in household products, industry, sewage treatment, biogas production, biocontrol, and biofertilisers

Microbes in household productsMicrobes in industrial productsMicrobes in sewage treatmentMicrobes in biogas productionMicrobes as biocontrol agentsMicrobes as biofertilisers

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Frequently Asked Questions

What are the important topics in Microbes in Human Welfare for Madhya Pradesh Board Class 12 Biology?
Key topics in Microbes in Human Welfare include Microbes in Household Products, Microbes in Industrial Products, Microbes in Sewage Treatment, Microbes in Production of Biogas. Study these first, then practise questions on each for the Madhya Pradesh Board Class 12 board exam.
How should I revise Microbes in Human Welfare for the Madhya Pradesh Board Class 12 board exam?
Learn the core ideas first, then work through the 50 practice questions on Microbes in Human Welfare. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Madhya Pradesh Board Class 12 Biology Syllabus

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