Quiz_Algae

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

 
 
 
 

2. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

4. Among the algae kelps are :

 
 
 
 

5. All algae have:

 
 
 
 

6. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

8. What are Cyanobacteria?

 
 
 
 

9. Ectocarpus produces:

 
 
 
 

10. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

12. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

14. Cap cells are found in the filament of:

 
 
 
 

15. Meiosis in Ulothrix takes place:

 
 
 
 

16. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

18. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Water bloom is generally caused by :

 
 
 
 

22. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Water-net is the name of:

 
 
 
 

39. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

41. Ulothrix produces :

 
 
 
 

42. Choose the correct statement about Spirogyra:

 
 
 
 

43. The chloroplast of Chlamydomonas are:

 
 
 
 

44. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Which of the following have algal zone?

 
 
 
 

49. Which group of algae have an incipient nucleus?

 
 
 
 

50. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

51. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

56. The alga, Spirogyra are found in :

 
 
 
 

57. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

58. An alga which is rich in proteins:

 
 
 
 

59. Agar-agar is obtained from:

 
 
 
 

60. One of the distinctive feature of Spirogyra is :

 
 
 
 

61. Which one of the following statement is wrong?

 
 
 
 

62. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

67. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

69. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

71. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Most of the algae are :

 
 
 
 

76. Asexual reproductive body of Volvox is called:

 
 
 
 

77. The largest alga is:

 
 
 
 

78. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

84. Redness of red sea is due to :

 
 
 
 

85. Which of the following have a prokaryotic cell?

 
 
 
 

86. Nannandria are: