Quiz_Algae

1. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. One of the distinctive feature of Spirogyra is :

 
 
 
 

5. Iodine is obtained from:

 
 
 
 

6. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

8. The chloroplast in Ulothrix is :

 
 
 
 

9. Which one of the following statement is wrong?

 
 
 
 

10. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Isomorphic type alternation of generation is found in:

 
 
 
 

14. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

16. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

18. Redness of red sea is due to :

 
 
 
 

19. Meiosis in Ulothrix takes place:

 
 
 
 

20. Each chloroplast in Spirogyra bears :

 
 
 
 

21. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

23. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

25. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Nannandria are:

 
 
 
 

30. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Spirogyra represents the :

 
 
 
 

34. Agar-agar is obtained from:

 
 
 
 

35. Most of the algae are :

 
 
 
 

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

 
 
 
 

37. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

39. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

41. Water-net is the name of:

 
 
 
 

42. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Heterocysts are found in :

 
 
 
 

52. Synzoospore is produced in:

 
 
 
 

53. All algae have:

 
 
 
 

54. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. An alga which is rich in proteins:

 
 
 
 

64. Among the algae kelps are :

 
 
 
 

65. Choose the correct statement about Spirogyra:

 
 
 
 

66. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Which of the following have algal zone?

 
 
 
 

70. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Most common type of conjugation in Spirogyra is :

 
 
 
 

74. The largest alga is:

 
 
 
 

75. Which group of algae have an incipient nucleus?

 
 
 
 

76. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Which of the following shows heterotrichous habit?

 
 
 
 

80. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Cap cells are found in the filament of:

 
 
 
 

84. The chloroplast of Chlamydomonas are:

 
 
 
 

85. Ulothrix produces :

 
 
 
 

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