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

 
 
 
 

2. All algae have:

 
 
 
 

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

 
 
 
 

4. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

6. Ulothrix produces :

 
 
 
 

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

 
 
 
 

8. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

17. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. The largest alga is:

 
 
 
 

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

 
 
 
 

22. True sexuality is not found in:

 
 
 
 

23. An alga which is rich in proteins:

 
 
 
 

24. Among the algae kelps are :

 
 
 
 

25. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

33. The zoospores of Ulothrix are :

 
 
 
 

34. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

35. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

44. Iodine is obtained from:

 
 
 
 

45. Choose the correct statement about Spirogyra:

 
 
 
 

46. The chloroplast of Chlamydomonas are:

 
 
 
 

47. Meiosis in Ulothrix takes place:

 
 
 
 

48. Mostly type of zygospore in Ulothrix is:

 
 
 
 

49. Which group of algae have an incipient nucleus?

 
 
 
 

50. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

52. Heterocysts are found in :

 
 
 
 

53. Water-net is the name of:

 
 
 
 

54. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Which one of the following statement is wrong?

 
 
 
 

61. Which of the following have algal zone?

 
 
 
 

62. The alga, Spirogyra are found in :

 
 
 
 

63. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

65. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

67. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

69. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

71. Each chloroplast in Spirogyra bears :

 
 
 
 

72. What are Cyanobacteria?

 
 
 
 

73. Iodine is obtained from :

 
 
 
 

74. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

76. The word “sea weeds” is used for:

 
 
 
 

77. Which of the following have a prokaryotic cell?

 
 
 
 

78. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

80. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

81. The chloroplast in Ulothrix is :

 
 
 
 

82. Antibiotic has been extracted from :

 
 
 
 

83. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Which fixes atmospheric nitrogen?

 
 
 
 


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