Quiz_Algae

1. On germination, each zygospore of Spirogyra divides meiotically into four, but the number of filaments produced is :

 
 
 
 

2. Which group of algae have an incipient nucleus?

 
 
 
 

3. What are Cyanobacteria?

 
 
 
 

4. Zygote which divides by meiotic division (zygotic meiosis occurs in):

 
 
 
 

5. In which of the following, isogamy, anisogamy and oogamy all are found?

 
 
 
 

6. Important feature of Spirogyra that distinguishes it from Ulothrix is :

 
 
 
 

7. Antibiotic has been extracted from :

 
 
 
 

8. Green plants without root, stem and leaves, but with a simple usually filamentous plant body are called:

 
 
 
 

9. Nonmotile, thin-walled spores of algae are called :

 
 
 
 

10. Under certain circumstances, a generating cell forms aplanospores from mucilaginous mass, which encloses numerous small but uninucleated bodies; this is known as :

 
 
 
 

11. Which of the following have a prokaryotic cell?

 
 
 
 

12. Blue-green algae, which live as endozoic in protozoans are called :

 
 
 
 

13. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

14. Which among the following is known as Father of Indian phycology?

 
 
 
 

15. Iodine is obtained from :

 
 
 
 

16. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

17. Synzoospore is produced in:

 
 
 
 

18. Most of the algae along with other submerged plants usually float on water during the day time, while they sink at night, because :

 
 
 
 

19. Heterotrichous habit means :

 
 
 
 

20. Each chloroplast in Spirogyra bears :

 
 
 
 

21. The basal-cell by which an alga is attached to its substratum is known as :

 
 
 
 

22. At the time of germination of zygospore in Spirogyra:

 
 
 
 

23. Cap cells are found in the filament of:

 
 
 
 

24. All algae have:

 
 
 
 

25. Meiosis in Ulothrix takes place:

 
 
 
 

26. Nannandria are:

 
 
 
 

27. Which of the following plants does not have archegonium?

 
 
 
 

28. Agar-agar is obtained from:

 
 
 
 

29. One of the algae can be used as food in the space flight. It is :

 
 
 
 

30. The thread-like body of Nostoc filament without mucilage sheath is called :

 
 
 
 

31. Each cell of Volvox colony has a structure, similar to:

 
 
 
 

32. ‘Red snow’ is caused by which of the following in alpine region?

 
 
 
 

33. Spirogyra represents the :

 
 
 
 

34. Agar-agar and algin are the product of:

 
 
 
 

35. Agar-agar, a common substance used in research is obtained from :

 
 
 
 

36. Sometimes a ladder-like structure is exhibited in Spirogyra due to :

 
 
 
 

37. Asexual reproductive body of Volvox is called:

 
 
 
 

38. Mostly type of zygospore in Ulothrix is:

 
 
 
 

39. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

40. Fire resistant fibres and plastic are obtained from the alginates present in the cell wall of which algae?

 
 
 
 

41. The flagella of Chlamydomonas are:

 
 
 
 

42. The alga, Spirogyra are found in :

 
 
 
 

43. Plant body is diploid and meiosis occurs in diploid gametangia at the time of formation of gametes in:

 
 
 
 

44. Prof. R.N. Singh has noteworthy contributions in the field of:

 
 
 
 

45. Water-net is the name of:

 
 
 
 

46. The chloroplast of Chlamydomonas are:

 
 
 
 

47. True sexuality is not found in:

 
 
 
 

48. Choose the correct statement about Spirogyra:

 
 
 
 

49. Which of the following have algal zone?

 
 
 
 

50. Which is not likely to be found on sea shore?

 
 
 
 

51. Which one of the following is an endozoic algae?

 
 
 
 

52. Which one of the following statement is wrong?

 
 
 
 

53. Which type of sexual reproduction is found in C. coccifera?

 
 
 
 

54. Richest source of protein, becoming popular throughout world and available in the Indian market also:

 
 
 
 

55. Water bloom is generally caused by :

 
 
 
 

56. The photoreceptor found at the anterior end of Chlamydomonas is:

 
 
 
 

57. The main characteristic that distinguishes a Spirogyra cell from a Ulothrix cell is :

 
 
 
 

58. Which fixes atmospheric nitrogen?

 
 
 
 

59. What is the reserve food material in chlorophycean algae?

 
 
 
 

60. The zoospores of Ulothrix are :

 
 
 
 

61. Which of the following shows heterotrichous habit?

 
 
 
 

62. Ectocarpus produces:

 
 
 
 

63. Spirogyra is commonly known by the name of ‘Pond scum’ or ‘Pond silk’ because :

 
 
 
 

64. Which of the following is a parasitic algae?

 
 
 
 

65. Heterocysts are found in :

 
 
 
 

66. Ulothrix produces :

 
 
 
 

67. Plant body is violettish-blue or blue-green in:

 
 
 
 

68. Most of the algae are :

 
 
 
 

69. Among the algae kelps are :

 
 
 
 

70. Iodine is obtained from:

 
 
 
 

71. Most common type of conjugation in Spirogyra is :

 
 
 
 

72. The largest alga is:

 
 
 
 

73. Which type of sexual reproduction is found in Volvox?

 
 
 
 

74. Diatoms are not destroyed easily like other algae, because:

 
 
 
 

75. An alga which is rich in proteins:

 
 
 
 

76. One of the distinctive feature of Spirogyra is :

 
 
 
 

77. Which type of sexual reproduction is found in C. brauni?

 
 
 
 

78. The word “sea weeds” is used for:

 
 
 
 

79. The chloroplast in Ulothrix is :

 
 
 
 

80. ‘Pond silk’ or ‘Water silk’ is the common name of :

 
 
 
 

81. Redness of red sea is due to :

 
 
 
 

82. Which is not the characteristic feature in Spirogyra life history?

 
 
 
 

83. Which type of sexual reproduction is found in C. debaryana?

 
 
 
 

84. Nucleus in Spirogyra is suspended in the cell with the help of :

 
 
 
 

85. Isomorphic type alternation of generation is found in:

 
 
 
 

86. Haplo-diplo-haplontic type triphasic life cycle occurs in: