Notes of Biology Chapter 10: Microbes In Human Welfare
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Bihar Board - Class 12 Biology - Chapter 10: Microbes In Human Welfare Notes

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Title of Class 12 Biology Chapter 10 in CBSE NCERT Notes is "Microbes in Human Welfare." This is an important chapter from which students can easily score marks. The NCERT Biology Chapter 10 notes for the current curriculum are included in this chapter.

Some important subtopics are included in this chapter, which are easy to learn, such as microbes in household and industrial products. To better understand the chapter, students need to complete more than 150 subtopic questions. This will help students obtain better grades and also help them understand concepts better.

Points to Remember:

  • Microbes are an important part of Earth's biosystem.
  • Not all microorganisms are pathogenic. Some microorganisms play an important role in human welfare.
  • Curd is fermented milk. It is prepared by microorganisms called lactobacilli.
  • Sewage in municipal waste and human waste is called sewage.
  • Living organisms are present in biofertilizers.

Subjects and Subtopics:

  • Topic: Microbes in Household Products
  • Topic: Microbes in Industrial Products
  • Topic: Microbes in Pollution Control
  • Topic: Microbes in Bio-gas Production
  • Topic: Microbes as Bio-control Agents
  • Topic: Microbes as Biofertilizers

Frequently Asked Questions:

Question 1: What are bacteria used for? Answer: Microbes help in the production of many food items, medicines, environmental cleanup, construction, and research.

Question 2: How many types of microbes are there? Answer: Major groups of microbes include bacteria, archaea, fungi (yeasts and molds), algae, protozoa, and viruses.

Question 3: List the uses of microbes in agriculture. Answer: Some uses of microbes in agriculture include nitrogen fixation, soil enrichment, pest control, and disease prevention.

Question 4: What is bio-gas, and how are microbes used in its production? Answer: Bio-gas is a type of renewable energy produced by the anaerobic digestion of organic materials by microbes, primarily bacteria.

Question 5: What is sewage? Explain the difference between primary and secondary sewage treatment. Answer: Sewage is the term used for municipal waste and human waste. Primary treatment involves physical processes to remove solids, while secondary treatment uses microbes to further break down organic matter.