8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard роХрогро┐родроорпН роЗропро▒рпНроХрогро┐родроорпН Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard роХрогро┐родроорпН роОрогрпНроХро│рпН Important Questions And Answers Study Material - QB365 Set B
NEW8th Standard
Tamilnadu 8th Standard роХрогро┐родроорпН роОрогрпНроХро│рпН Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
Tamilnadu 8th Standard Social Science рокрпКро░рпБро│ро┐ропро▓рпН - рокрпКродрпБ рооро▒рпНро▒рпБроорпН родройро┐ропро╛ро░рпН родрпБро▒рпИроХро│рпН Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science роХрпБроЯро┐роорпИропро┐ропро▓рпН - роирпАродро┐родрпНродрпБро▒рпИ Important Questions And Answers Study Material - QB365
NEW8th Standard
Tamilnadu 8th Standard Social Science роХрпБроЯро┐роорпИропро┐ропро▓рпН - рокро╛родрпБроХро╛рокрпНрокрпБ рооро▒рпНро▒рпБроорпН ро╡рпЖро│ро┐ропрпБро▒ро╡рпБроХрпН роХрпКро│рпНроХрпИ Important Questions And Answers Study Material - QB365
Published on: 21/09/2019
Micro Organisms
Download Tamil Nadu 8th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Mention any 2 plant diseases caused by microbes.
2.
What are the types of Pigments found in algae?
3.
How can you classify bacteria based on their respiration?
4.
Give any 2 living characters of virus.
5.
What are the five categories of microorganisms?
6.
Which diseases can be prevented by vaccination?
7.
Who discovered penicillin?
8.
Write the names of any three protozoans.
9.
Name the bacteria used in the production of vinegar.
10.
Write the name of any nitrogen fixing bacteria.
1.
i. Citrus canker - caused by bacteria
ii. Potato blight disease - caused by fungi.
2.
Some algae have photosynthetic pigments like fucoxanthin (brown), Xanthophylls (yellow), Phycoerythrin (red), Phycocyanin (blue).
3.
i. Aerobic bacteria (requires oxygen)
ii. Anaerobic bacteria (Does not requires oxygen)
4.
i. They respond to heat, chemicals, and radiations.
ii. They show irritability.
5.
Virus, Bacteria, fungi, Algae and protozoa
6.
MMR Vaccine for measles, Mumps, Rubella, BCG (Bacille Calamette Guerin) vaccine for Tuberculosis
7.
Sir Alexander Fleming discovered penicillin
8.
i) Plasmodium
ii) Paramecium
iii) Euglena
9.
Acetobacter is a genus of bacteria that oxidize ethanol and produce acetic acid.
10.
i) Rhizobium,
ii) cyanobacteria and
iii) Nostoc.
8th Standard Syllabus & Materials
8th Standard
Tamilnadu 8th Standard Social Science рокрпБро╡ро┐ропро┐ропро▓рпН - рокрпБро╡ро┐рокрпНрокроЯроЩрпНроХро│рпИроХрпН роХро▒рпНро▒ро▒ро┐родро▓рпН Important Questions And Answers Study Material - QB365
NEW8th Standard
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NEW8th Standard
Tamilnadu 8th Standard Social Science рокрпБро╡ро┐ропро┐ропро▓рпН - родрпКро┤ро┐ро▓роХроЩрпНроХро│рпН Important Questions And Answers Study Material - QB365
NEW8th Standard
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Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
