11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 25/06/2021
QB365 provides detailed and simple solution for every Creative Questions in class 11 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
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.
Discuss about fossil plants.
2.
Write about secondary growth of gymnosperms.
3.
How are pteridophytes classified?
4.
List the difference between the microsporophyll and megasporophyll.
5.
Mention three salient features of Brown algae.
1.
(i) The national wood fossil park is situated in Tiruvakkarai, a Village of Villupuram district of Tamil Nadu.
(ii) The park contains petrified wood fossils approximately 20 million years old.
2.
(i) Secondary growth is present. The wood may be Manoxylic(Porous, soft, more parenchyma with wide medullary ray -Cycas) or Pycnoxylic (compact with narrow medullary ray-Pinus).
(ii) They are Heterosporous. The plant may be monoecious (Pinus) or dioecious (cycas). Microsporangia and Megasporangia are produced on Microsporophylland Megasporophyll respectively.
3.
The Pteridophytes are divided into five subdivisions by Reimer.
1. Psilophytopsida
2. Psilotopsida
3. Lycopsida
4. Sphenopsida
5. Pteropsida.
4.
| S.No. | Microsporophyll | Megasporophyll |
| 1. | It bears microsporangia | It bears megasporangia. |
| 2. | It contains numerous microspores. | It usually contains one megaspore. |
| 3. | Microspores are released. | Megaspores are retained inside megasporangium. |
5.
1. The thallus is differentiated into leaf like photosynthetic part' called frond, a stalk like structure called stipe and a holdfast.
2. Apart from Chlorophylls, Carotenoids and Xanthophylls, a golden brown pigment called fucoxanthin is present.
3. Mannitol and Laminarin are the reserve food materials.
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
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
