Quiz_Algae

1. The word “sea weeds” is used for:

 
 
 
 

2. Ectocarpus produces:

 
 
 
 

3. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

5. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Choose the correct statement about Spirogyra:

 
 
 
 

11. Antibiotic has been extracted from :

 
 
 
 

12. Heterotrichous habit means :

 
 
 
 

13. Which fixes atmospheric nitrogen?

 
 
 
 

14. Nannandria are:

 
 
 
 

15. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

17. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

19. Most common type of conjugation in Spirogyra is :

 
 
 
 

20. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

22. The flagella of Chlamydomonas are:

 
 
 
 

23. Cap cells are found in the filament of:

 
 
 
 

24. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. What are Cyanobacteria?

 
 
 
 

28. Water-net is the name of:

 
 
 
 

29. The chloroplast in Ulothrix is :

 
 
 
 

30. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

32. Each chloroplast in Spirogyra bears :

 
 
 
 

33. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

35. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

37. The largest alga is:

 
 
 
 

38. Iodine is obtained from :

 
 
 
 

39. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

50. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

55. The zoospores of Ulothrix are :

 
 
 
 

56. One of the distinctive feature of Spirogyra is :

 
 
 
 

57. Which group of algae have an incipient nucleus?

 
 
 
 

58. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

60. Which one of the following statement is wrong?

 
 
 
 

61. Which of the following is a parasitic algae?

 
 
 
 

62. All algae have:

 
 
 
 

63. An alga which is rich in proteins:

 
 
 
 

64. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

66. Which of the following have a prokaryotic cell?

 
 
 
 

67. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

68. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

83. True sexuality is not found in:

 
 
 
 

84. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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