Quiz_Algae

1. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

2. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Ectocarpus produces:

 
 
 
 

9. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Iodine is obtained from :

 
 
 
 

15. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

22. Most of the algae are :

 
 
 
 

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

 
 
 
 

24. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

26. Asexual reproductive body of Volvox is called:

 
 
 
 

27. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

29. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Which of the following have a prokaryotic cell?

 
 
 
 

34. What are Cyanobacteria?

 
 
 
 

35. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

36. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

38. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

40. Which of the following have algal zone?

 
 
 
 

41. One of the distinctive feature of Spirogyra is :

 
 
 
 

42. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Synzoospore is produced in:

 
 
 
 

46. The flagella of Chlamydomonas are:

 
 
 
 

47. Water-net is the name of:

 
 
 
 

48. Nannandria are:

 
 
 
 

49. Most common type of conjugation in Spirogyra is :

 
 
 
 

50. Which one of the following statement is wrong?

 
 
 
 

51. All algae have:

 
 
 
 

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

 
 
 
 

53. Isomorphic type alternation of generation is found in:

 
 
 
 

54. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

55. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

57. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Heterocysts are found in :

 
 
 
 

62. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Which group of algae have an incipient nucleus?

 
 
 
 

69. Redness of red sea is due to :

 
 
 
 

70. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The alga, Spirogyra are found in :

 
 
 
 

75. Choose the correct statement about Spirogyra:

 
 
 
 

76. Heterotrichous habit means :

 
 
 
 

77. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

79. True sexuality is not found in:

 
 
 
 

80. Agar-agar is obtained from:

 
 
 
 

81. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

86. The zoospores of Ulothrix are :