Biology - Cyanobacteria
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Question 1 of 50
1. Question
Blue- green algae is found in:
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Question 2 of 50
2. Question
Prokaryotic algae belong to:
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Question 3 of 50
3. Question
Cyanobacteria is a new name for:
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Question 4 of 50
4. Question
Nostoc is a :
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Question 5 of 50
5. Question
Prokaryotic ribosomes are:
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Question 6 of 50
6. Question
Cell division in blue- green algae closely resembles to that of:
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Question 7 of 50
7. Question
First oxygenic photosynthesizer of earth:
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Question 8 of 50
8. Question
Hormogonia are produced by:
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Question 9 of 50
9. Question
Trichodesmium erythreum shows phenomenon of:
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Question 10 of 50
10. Question
Cell wall of eyanobacteria resembles very closely to:
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Question 11 of 50
11. Question
Sexual reproduction in cyanobacteria is by:
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Question 12 of 50
12. Question
Trichomes of blue – green algae lack:
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Question 13 of 50
13. Question
Cell of cyanobacteria differ from that of eubacteria in having:
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Question 14 of 50
14. Question
Akinites of ble- green alage are meant for:
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Question 15 of 50
15. Question
Plasmids are extra- charomosmal genetic material of:
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Question 16 of 50
16. Question
Abundance of cyanobacteria in paddy fields results in saving of:
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Question 17 of 50
17. Question
Hormogoina are vegetative reproductive structure of:
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Question 18 of 50
18. Question
Richest source of protein is:
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Question 19 of 50
19. Question
Bacteria and cyanobacteria have similar type of:
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Question 20 of 50
20. Question
Cyanobacteria differ from bacteria as they:
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Question 21 of 50
21. Question
Professor R.N. Singh studied:
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Question 22 of 50
22. Question
Blue- green algae (cyanobacteria) lack:
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Question 23 of 50
23. Question
Nitrogenase enzyme occurs in some blue-green algae in its:
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Question 24 of 50
24. Question
Blue- green algae perennate un-favourable condition through;
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Question 25 of 50
25. Question
Trichodesmium that causes phenomenon of ‘red sea’ belongs to:
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Question 26 of 50
26. Question
Nostoc or Anabaena occurs endophytically in:
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Question 27 of 50
27. Question
Loosely suspended thylakoids are seen inperipheral cytoplasm in cells of:
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Question 28 of 50
28. Question
Cyanophages were discovered by:
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Question 29 of 50
29. Question
Cyanobacteria lack:
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Question 30 of 50
30. Question
Water logging in paddy field enhances growth of:
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Question 31 of 50
31. Question
Microcystis aeruginosa is usually found associated with:
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Question 32 of 50
32. Question
Leucohytes are those which lack ability of:
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Question 33 of 50
33. Question
Oscillatory movement of Oscillatoria is due to its:
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Question 34 of 50
34. Question
False branching is exhibited by:
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Question 35 of 50
35. Question
Thick- walled, resistant resting spores which are densely packed with food filamentous cyanobacteria are:
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Question 36 of 50
36. Question
Best nitrogen fixing ability has been reported in:
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Question 37 of 50
37. Question
nitrogen fixing genes are found in:
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Question 38 of 50
38. Question
Some blue-green algae serve as ‘Biological filters’ in fresh waters as they reduce:
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Question 39 of 50
39. Question
Blue- green algae resemble with green algae in their:
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Question 40 of 50
40. Question
A blue-green algae, which produces red filaments and occurs in red sea:
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Question 41 of 50
41. Question
Motile cells are altogether absent in members belonging to:
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Question 42 of 50
42. Question
Intercalary heterocysts are found in the filaments of:
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Question 43 of 50
43. Question
Scytomema usually occurs:
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Question 44 of 50
44. Question
Vegetative propagation in cyanobacteria is by:
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Question 45 of 50
45. Question
Temperature tolerance in some blue- green algae is due to presence of:
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Question 46 of 50
46. Question
Amount of protein in Spirullina on dry weight basis nearly:
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Question 47 of 50
47. Question
Pseudovacuoles and gas vacuoles are found in the cells of certain planktonic:
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Question 48 of 50
48. Question
Azolla is often used as a good biofertilizer because it contains:
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Question 49 of 50
49. Question
Alfa and beta granules of cyanophycean cells are there:
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Question 50 of 50
50. Question
None- symbiotic nitrogen fixer is:
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