हिंदी

Science (English Medium) कक्षा १२ - CBSE Important Questions for Biology

Advertisements
[object Object]
[object Object]
विषयों
मुख्य विषय
अध्याय
Advertisements
Advertisements
Biology
< prev  441 to 460 of 571  next > 

List the two steps the classical plant breeding involves.

Appears in 1 question paper
Chapter: [8] Strategies for Enhancement in Food Production
Concept: Plant Breeding

Name a genus of fungi that forms a mycorrhizal association with plants.

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

State the difference in organic farmers approach from that of conventional pest control methods.

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

"Man can be a primary as well as a secondary consumer." Justify this statement.

Appears in 1 question paper
Chapter: [8] Strategies for Enhancement in Food Production
Concept: Strategies for Enhancement in Food Production (Questions)

Bottled fruit juices are clearer as compared to those made at home. Explain.

 

 
Appears in 1 question paper
Chapter: [8] Strategies for Enhancement in Food Production
Concept: Introduction of Strategies for Enhancement in Food Production

Name the animals in which methanogens occur and the role they play there.

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

Explain the interrelationship between organic farming and biofertilizers, with the help of any three suitable examples.

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

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

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.
How did plant breeding techniques help north Indian farmers to develop cane with desired characters?

Appears in 1 question paper
Chapter: [8] Strategies for Enhancement in Food Production
Concept: Plant Breeding

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

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

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
< prev  441 to 460 of 571  next > 
Advertisements
Advertisements
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
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×