Quiz_Algae

1. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

3. The zoospores of Ulothrix are :

 
 
 
 

4. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Ectocarpus produces:

 
 
 
 

14. Water bloom is generally caused by :

 
 
 
 

15. Each chloroplast in Spirogyra bears :

 
 
 
 

16. Iodine is obtained from :

 
 
 
 

17. The flagella of Chlamydomonas are:

 
 
 
 

18. The word “sea weeds” is used for:

 
 
 
 

19. One of the distinctive feature of Spirogyra is :

 
 
 
 

20. Heterotrichous habit means :

 
 
 
 

21. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

23. All algae have:

 
 
 
 

24. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

35. Water-net is the name of:

 
 
 
 

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

 
 
 
 

37. Meiosis in Ulothrix takes place:

 
 
 
 

38. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Nannandria are:

 
 
 
 

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

 
 
 
 

44. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Mostly type of zygospore in Ulothrix is:

 
 
 
 

48. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Spirogyra represents the :

 
 
 
 

53. The alga, Spirogyra are found in :

 
 
 
 

54. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

55. Which fixes atmospheric nitrogen?

 
 
 
 

56. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

63. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

65. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

66. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

68. Most of the algae are :

 
 
 
 

69. Which one of the following statement is wrong?

 
 
 
 

70. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

72. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Which of the following is a parasitic algae?

 
 
 
 

79. Which of the following have a prokaryotic cell?

 
 
 
 

80. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

82. What are Cyanobacteria?

 
 
 
 

83. Antibiotic has been extracted from :

 
 
 
 

84. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

86. Among the algae kelps are :