Quiz_Algae

1. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

3. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. True sexuality is not found in:

 
 
 
 

7. Nannandria are:

 
 
 
 

8. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

10. Heterotrichous habit means :

 
 
 
 

11. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

12. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

17. Water-net is the name of:

 
 
 
 

18. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The alga, Spirogyra are found in :

 
 
 
 

24. Among the algae kelps are :

 
 
 
 

25. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

31. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. The word “sea weeds” is used for:

 
 
 
 

38. Water bloom is generally caused by :

 
 
 
 

39. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Iodine is obtained from:

 
 
 
 

43. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

45. Spirogyra represents the :

 
 
 
 

46. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

48. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

50. The flagella of Chlamydomonas are:

 
 
 
 

51. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

53. The largest alga is:

 
 
 
 

54. Which of the following shows heterotrichous habit?

 
 
 
 

55. Which fixes atmospheric nitrogen?

 
 
 
 

56. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

64. Most of the algae are :

 
 
 
 

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

 
 
 
 

66. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

68. The chloroplast of Chlamydomonas are:

 
 
 
 

69. Mostly type of zygospore in Ulothrix is:

 
 
 
 

70. Ectocarpus produces:

 
 
 
 

71. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

73. All algae have:

 
 
 
 

74. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Which group of algae have an incipient nucleus?

 
 
 
 

78. Which one of the following statement is wrong?

 
 
 
 

79. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

81. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

83. Each chloroplast in Spirogyra bears :

 
 
 
 

84. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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