100% FREE ACCESS8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
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
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
