Quiz_Algae

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

 
 
 
 

2. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

4. What are Cyanobacteria?

 
 
 
 

5. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Which group of algae have an incipient nucleus?

 
 
 
 

9. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

11. Which one of the following statement is wrong?

 
 
 
 

12. Which fixes atmospheric nitrogen?

 
 
 
 

13. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

15. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

17. Which of the following is a parasitic algae?

 
 
 
 

18. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

23. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

27. Spirogyra represents the :

 
 
 
 

28. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

34. Asexual reproductive body of Volvox is called:

 
 
 
 

35. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. One of the distinctive feature of Spirogyra is :

 
 
 
 

40. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

45. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

47. Most of the algae are :

 
 
 
 

48. Which of the following shows heterotrichous habit?

 
 
 
 

49. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Which of the following have a prokaryotic cell?

 
 
 
 

53. The chloroplast in Ulothrix is :

 
 
 
 

54. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Nannandria are:

 
 
 
 

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

 
 
 
 

62. Agar-agar is obtained from:

 
 
 
 

63. Redness of red sea is due to :

 
 
 
 

64. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

66. Cap cells are found in the filament of:

 
 
 
 

67. The flagella of Chlamydomonas are:

 
 
 
 

68. The chloroplast of Chlamydomonas are:

 
 
 
 

69. Heterotrichous habit means :

 
 
 
 

70. Among the algae kelps are :

 
 
 
 

71. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Ulothrix produces :

 
 
 
 

75. Which of the following have algal zone?

 
 
 
 

76. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

78. The zoospores of Ulothrix are :

 
 
 
 

79. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. All algae have:

 
 
 
 

84. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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