12th Bio - Botany (CHAP 6-10 ) Important Questions
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××× (Most important questions) (1st level)
×× (Important) (2nd level)
× ( Have a glance) (3rd level)
Chapter - 6
1.Define Ecology (109)**
2. What is Ecological hierarchy ?(110)**
3. Difference between Autocology and synecology (110)**
4. Difference between Habitat and Niche (110)***
5. What are Ecological Equivalents? (110)**
6. What are Ecological factors? (111)*
7. Difference between Heliophytes and sciophytes (112)***
8. Explain Thermal stratification (112)***
9. Define Euryhaline and Stenohaline (113)***
10. What is phytoremediation? (114)**
11. Write a note on Albedo effect (114)*
12. What is Rhytidome ?(115)*
13. What is pedogenesis (113)*
14. Tabulation (118)**
15. What are Epiphytes/velamen tissue ?(119)**
16. Explain the types of Hydrophytes (122)**
17. Write a note on Seed ball and advantages (129)***
(B.B - 34,35,41,44,47,53,54)
Chapter - 7
1.Types of Carbon (136)**
2. Productivity of an Ecosystem (136)***
3. Laws of Thermodynamics (137)*** (especially ten percent law)
4. Explain the types of food chain (138)***
5. Define food web and significance (138)**
6. Explain the types of Ecological pyramids (139)***
7. Explain the Mechanism of decomposition (140)*
8. Types of Ecosystem (143)***
9. Structure of pond Ecosystem (144)*
10. Define Limnology and oceanography (144)*
11. How to protect Ecosystem?(146)***
12. What is the flagship species? (147)**
13. Difference between 1° and 2° succession (148)**
14. Classification of 1° and 2° succession (149)**
15. Explain the stages of Hydrosere (149)***
16. Significance of plant succession (151)*
(B.B - 19,24)
Chapter - 8
1.What is Greenhouse effect-causes and percentage(flowchart) (156)***
2. What is Global Warming? Effects (156)**
3. Global warming effects on plants (157)**
4. What is ozone depletion? Effects (157)**
5. What are ozone holes and Dobson units? (158)***
6. Write a note on clean development Mechanism (158)**
7. What are plant indicators? Eg. (158)**
8. What is Agroforestry and benefits? (159)***
9. What is social forestry? (159)**
10. Write the effects of Deforestation (160)***
11. Define Afforestation (160)*
12. Define Invasive species (161)**
13. Biodiversity conservation (162) —> classification**
14. Write a note on sacred groves (163)**
15. Define CCS (164)***
16. How can we reduce carbon footprints (163)*
17. Explain RWH (166)***
18. Importance of GIS (167)**
Chapter - 9
1.Define organic farming (172)**
2. Define Bio-fertilizers (172)*
3. Seaweed Liquid Fertiliser (173)*
4. Biopesticides —-> Trichoderma (174)**
5. Define Green Manuring (174)*
6. Objectives of plant Breeding (173)***
7. Difference between Primary and secondary Introduction (173)***
8. Define acclimatisation (177)**
9. Types of selection (176)*
10. What is Hybridization? Steps and Types (176,177)***
11. Explain heterosis and types (177)***
12. What is mutation breeding ?(178)*
13. Write a note on Modern plant breeding (180)**
(B.B - 22,24)
Chapter - 10
1.What is pseudo-cereal? (186)***
2. Write the uses of coffee (190)**
3. Explain about "King of Species" and "Queen of Species"? (191,192)***
4. Write the medicinal uses of Turmeric (192)**
5. Write about "Henna* (195)***
6. Write about Keezhanelli and Nilavembu (197)***
7. What is opium poppy and marijiuana ? (198)***
8. How will you prepare organic pesticide and Bio Pest repellant (199,200)**
(B.B - 21,22,23,24,27,31)
- XII Bio - Botany (CHAP 1-10 ) Important Questions - CLICK HERE
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➤ CLASS 11 All SUBJECTS unit wise Important Questions - CLICK HERE
➤ CLASS 10 All SUBJECTS unit wise Important Questions - CLICK HERE
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