Quiz_Algae

1. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

5. The largest alga is:

 
 
 
 

6. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

8. The chloroplast of Chlamydomonas are:

 
 
 
 

9. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Heterocysts are found in :

 
 
 
 

13. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

15. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

20. Synzoospore is produced in:

 
 
 
 

21. Asexual reproductive body of Volvox is called:

 
 
 
 

22. Which fixes atmospheric nitrogen?

 
 
 
 

23. Iodine is obtained from :

 
 
 
 

24. What are Cyanobacteria?

 
 
 
 

25. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

27. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Isomorphic type alternation of generation is found in:

 
 
 
 

34. Which one of the following statement is wrong?

 
 
 
 

35. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

43. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

48. An alga which is rich in proteins:

 
 
 
 

49. Nannandria are:

 
 
 
 

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

 
 
 
 

51. The flagella of Chlamydomonas are:

 
 
 
 

52. Each chloroplast in Spirogyra bears :

 
 
 
 

53. Cap cells are found in the filament of:

 
 
 
 

54. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Ulothrix produces :

 
 
 
 

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

 
 
 
 

59. Water bloom is generally caused by :

 
 
 
 

60. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

62. Among the algae kelps are :

 
 
 
 

63. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. All algae have:

 
 
 
 

67. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

68. Most of the algae are :

 
 
 
 

69. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

71. Redness of red sea is due to :

 
 
 
 

72. Heterotrichous habit means :

 
 
 
 

73. Meiosis in Ulothrix takes place:

 
 
 
 

74. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. The chloroplast in Ulothrix is :

 
 
 
 

78. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The alga, Spirogyra are found in :