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Answer the following question:
Name the group of bacteria involved in setting milk into curd. Explain the process they carry in doing so. Write another beneficial role of such bacteria.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Household Products

Answer the following question.
What are 'flocs', formed during secondary treatment of sewage?

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Sewage Treatment

Answer the following question.
Write any two places where methanogens can be found.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Production of Biogas

How does the activity of each one of the following help in organic farming?
Mycorrhiza

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes as Biocontrol Agents

How does the activity of each one of the following help in organic farming?
Cyanobacteria

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes as Biofertilizers

Answer the following question.
Secondary treatment of the sewage is also called Biological treatment. Justify this statement and explain the process.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Sewage Treatment

Answer the following question.
Describe the roles of heat, primers, and the bacterium Thermus aquaticus in the process of PCR.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Applications of Biotechnology in Health and Medicine

Answer the following question.
Explain the various steps involved in the production of artificial insulin.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Applications of Biotechnology in Health and Medicine

State the medicinal value and the bioactive molecules produced by Penicillium notatum.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

State the medicinal value and the bioactive molecules produced by Monascus purpureus.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

State the medicinal value and the bioactive molecules produced by Trichoderma polysporum.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

Describe the role of high temperature.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Applications of Biotechnology in Health and Medicine

Describe the role of primers.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Applications of Biotechnology in Health and Medicine

Describe the role of bacterium Thermus aquaticus in carrying the process of polymerase chain reaction.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Applications of Biotechnology in Health and Medicine

Answer the following question based on Meselson and Stahl's experiment on E. coli :

Write the name of the chemical substance used as the only source of nitrogen in the experiment.

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

Name the microbes that help the production of the following product commercially:
Statin

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

Name the microbes that help the production of the following product commercially:
Citric acid

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Household Products

Name the microbes that help the production of the following product commercially:
Penicillin

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

State the most important contribution of the following microbes for human welfare:

Monascus purpureus

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products

State the most important contribution of the following microbes for human welfare:

Trichoderma Polysporum

Appears in 1 question paper
Chapter: [8] Microbes in Human Welfare
Concept: Microbes in Industrial Products
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CBSE Science (English Medium) कक्षा १२ Important Questions
Important Questions for CBSE Science (English Medium) कक्षा १२ Biology
Important Questions for CBSE Science (English Medium) कक्षा १२ Chemistry
Important Questions for CBSE Science (English Medium) कक्षा १२ Computer Science (C++)
Important Questions for CBSE Science (English Medium) कक्षा १२ Computer Science (Python)
Important Questions for CBSE Science (English Medium) कक्षा १२ English Core
Important Questions for CBSE Science (English Medium) कक्षा १२ English Elective - NCERT
Important Questions for CBSE Science (English Medium) कक्षा १२ Entrepreneurship
Important Questions for CBSE Science (English Medium) कक्षा १२ Geography
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Core)
Important Questions for CBSE Science (English Medium) कक्षा १२ Hindi (Elective)
Important Questions for CBSE Science (English Medium) कक्षा १२ History
Important Questions for CBSE Science (English Medium) कक्षा १२ Informatics Practices
Important Questions for CBSE Science (English Medium) कक्षा १२ Mathematics
Important Questions for CBSE Science (English Medium) कक्षा १२ Physical Education
Important Questions for CBSE Science (English Medium) कक्षा १२ Physics
Important Questions for CBSE Science (English Medium) कक्षा १२ Political Science
Important Questions for CBSE Science (English Medium) कक्षा १२ Psychology
Important Questions for CBSE Science (English Medium) कक्षा १२ Sociology
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