Quiz_Algae

1. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Spirogyra represents the :

 
 
 
 

7. Which fixes atmospheric nitrogen?

 
 
 
 

8. Heterotrichous habit means :

 
 
 
 

9. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

11. Ulothrix produces :

 
 
 
 

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

 
 
 
 

13. Iodine is obtained from:

 
 
 
 

14. Agar-agar is obtained from:

 
 
 
 

15. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

17. Which of the following have algal zone?

 
 
 
 

18. Which group of algae have an incipient nucleus?

 
 
 
 

19. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

21. The chloroplast in Ulothrix is :

 
 
 
 

22. Redness of red sea is due to :

 
 
 
 

23. Most common type of conjugation in Spirogyra is :

 
 
 
 

24. Synzoospore is produced in:

 
 
 
 

25. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. True sexuality is not found in:

 
 
 
 

29. The largest alga is:

 
 
 
 

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

 
 
 
 

31. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

33. Most of the algae are :

 
 
 
 

34. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

36. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

37. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Isomorphic type alternation of generation is found in:

 
 
 
 

41. The zoospores of Ulothrix are :

 
 
 
 

42. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

51. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

52. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

54. The alga, Spirogyra are found in :

 
 
 
 

55. Water-net is the name of:

 
 
 
 

56. Nannandria are:

 
 
 
 

57. All algae have:

 
 
 
 

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

 
 
 
 

59. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

61. Among the algae kelps are :

 
 
 
 

62. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. What are Cyanobacteria?

 
 
 
 

66. An alga which is rich in proteins:

 
 
 
 

67. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

80. Heterocysts are found in :

 
 
 
 

81. Which of the following have a prokaryotic cell?

 
 
 
 

82. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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