Quiz_Algae

1. Spirogyra represents the :

 
 
 
 

2. The alga, Spirogyra are found in :

 
 
 
 

3. Water-net is the name of:

 
 
 
 

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

 
 
 
 

5. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

6. Each chloroplast in Spirogyra bears :

 
 
 
 

7. Heterocysts are found in :

 
 
 
 

8. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

25. The chloroplast in Ulothrix is :

 
 
 
 

26. The word “sea weeds” is used for:

 
 
 
 

27. The largest alga is:

 
 
 
 

28. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Cap cells are found in the filament of:

 
 
 
 

32. Which fixes atmospheric nitrogen?

 
 
 
 

33. Antibiotic has been extracted from :

 
 
 
 

34. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

35. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

36. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Nannandria are:

 
 
 
 

40. Water bloom is generally caused by :

 
 
 
 

41. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Choose the correct statement about Spirogyra:

 
 
 
 

45. Which of the following is a parasitic algae?

 
 
 
 

46. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Agar-agar is obtained from:

 
 
 
 

50. Asexual reproductive body of Volvox is called:

 
 
 
 

51. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

56. Which of the following have a prokaryotic cell?

 
 
 
 

57. Synzoospore is produced in:

 
 
 
 

58. Most of the algae are :

 
 
 
 

59. True sexuality is not found in:

 
 
 
 

60. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Iodine is obtained from :

 
 
 
 

64. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. The zoospores of Ulothrix are :

 
 
 
 

68. Isomorphic type alternation of generation is found in:

 
 
 
 

69. Mostly type of zygospore in Ulothrix is:

 
 
 
 

70. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. All algae have:

 
 
 
 

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

 
 
 
 

79. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

81. Which of the following shows heterotrichous habit?

 
 
 
 

82. The flagella of Chlamydomonas are:

 
 
 
 

83. What are Cyanobacteria?

 
 
 
 

84. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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