11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
Published on: 19/09/2019
Botany - Living World
Download Tamil Nadu 11th Standard Biology 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 Biology Test1.
Define transformation.
2.
Define Metabolism.
3.
List out the property of living things.
4.
Name the causal agent of Duodenal Ulcer.
5.
Name a biodegradable plastic
6.
What is ergot?
7.
Why are club fungi so called?
8.
Name the bacteria which causes.
(a) Food Poisoning
(b) Plague
9.
What are capnophilic bacteria?
10.
Mention any two features of Bacteria.
11.
How was the word virus derived?
12.
What is Homeostasis?
13.
Differentiate Homoiomerous and Heteromerous lichens.
14.
Why do farmers plant leguminous crops in crop rotations/mixed cropping?
15.
Write the distinguishing features of Monera.
1.
The phenomenon of changing the character of a strain by transferring the DNA of another strain -into the former is called transformation. It is a method of sexual reproduction in bacteria
2.
The sum of all the chemical reactions taking place in a cell of a living organism.
3.
Movement, Nutrition, Respiration and Excretion are considered as the property of living things.
4.
Helicobacter pylori.
5.
PHB (Poly-\(\beta \) hydroxyl butyrate) is a microbial plastic synthesized by Ralstonia.
6.
It is a Alkaloid produced by Claviceps purpurea (fungus), called ergotamine. It is used as vasoconstrictor.
7.
1. The basidium is club shaped with four basidiospores.
2. Thus this group of fungi (Basidiomycetes) is popularly called club fungi.
8.
(a) Food Poisoning - Clostridium botulinum
(b) Plague - Yersinia Pestis
9.
Bacteria which require CO2 for their growth are called Capnophilic bacteria.
Eg : Campylobacter.
10.
1. They are prokaryotes.
2. The genetic material is called nucleoid and lacks nuclear membrane.
3. They reproduce by fission
11.
The word virus is derived from Latin meaning 'Poison' .
12.
Property of self-regulation and tendency to maintain a steady state within an external environment which is liable to change is called Homeostasis. It is essential for the living organisms.
13.
| Homoiomerous | Heteromerous |
| Algal cells evenly distributed in the thallus | A distinct layer of algae and fungi present |
14.
During crop rotations and mixed cropping. Farmers plant leguminous crops to increase the soil fertility.
| S.No | Beneficial aspects | Bacteria | Role |
| 1. | Ammonification |
1. Bacillus ramosus 2.Bacillus mycoides |
Convert complex proteins in the dead bodies of plants and animals into ammonia which is later converted into ammonium salt |
| 2. | Nitrification |
1. Nitrobacter 2. Nitrosomonas |
Convert ammonium salts into nitrites and nitrates |
| 3. | Nitrogen fixation |
1. Azotobacter 2. Clostridium 3. Rhizobium |
(i) Converting atmospheric nitrogen into organic nitrogen |
| (ii) The nitrogenous compounds are also oxidized to nitrogen | |||
| (iii) All these activities of bacteria increase soil fertility |
15.
| S.No | Criteria | Monera |
| 1. | Cell type | Prokaryotic |
| 2. | Level of organization |
Mostly unicellular, rarely Multicellular |
| 3. | Cell wall | Present (made up of peptidoglycan and mucopeptides) |
| 4. | Nutrition | Autotrophic (Phototrophic, Chemoautotrophic) Heterotrophic (Parasitic and Saprophytic) |
| 5. | Motility | Motile or non-motile |
| 6. | Organisms | Archaebacteria, Eubacteria, Cyanobacteria, Actinomycetes and Mycoplasma |
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
