Quiz_Algae

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

 
 
 
 

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

 
 
 
 

3. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

5. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Among the algae kelps are :

 
 
 
 

16. The flagella of Chlamydomonas are:

 
 
 
 

17. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

19. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

25. The zoospores of Ulothrix are :

 
 
 
 

26. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which group of algae have an incipient nucleus?

 
 
 
 

30. The word “sea weeds” is used for:

 
 
 
 

31. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

33. Iodine is obtained from:

 
 
 
 

34. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

36. Which of the following is a parasitic algae?

 
 
 
 

37. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

41. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

43. Which one of the following statement is wrong?

 
 
 
 

44. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

46. The largest alga is:

 
 
 
 

47. Asexual reproductive body of Volvox is called:

 
 
 
 

48. Spirogyra represents the :

 
 
 
 

49. Water-net is the name of:

 
 
 
 

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

 
 
 
 

51. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

52. All algae have:

 
 
 
 

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

 
 
 
 

54. Nannandria are:

 
 
 
 

55. Ectocarpus produces:

 
 
 
 

56. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

58. Mostly type of zygospore in Ulothrix is:

 
 
 
 

59. Most of the algae are :

 
 
 
 

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

 
 
 
 

61. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Antibiotic has been extracted from :

 
 
 
 

66. Iodine is obtained from :

 
 
 
 

67. Each chloroplast in Spirogyra bears :

 
 
 
 

68. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Which of the following have algal zone?

 
 
 
 

72. Heterotrichous habit means :

 
 
 
 

73. Agar-agar is obtained from:

 
 
 
 

74. Choose the correct statement about Spirogyra:

 
 
 
 

75. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

77. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Heterocysts are found in :

 
 
 
 

85. Ulothrix produces :

 
 
 
 

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