Quiz_Algae

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

 
 
 
 

2. Cap cells are found in the filament of:

 
 
 
 

3. Water bloom is generally caused by :

 
 
 
 

4. Asexual reproductive body of Volvox is called:

 
 
 
 

5. All algae have:

 
 
 
 

6. Ulothrix produces :

 
 
 
 

7. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

13. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Heterocysts are found in :

 
 
 
 

17. Ectocarpus produces:

 
 
 
 

18. Redness of red sea is due to :

 
 
 
 

19. Synzoospore is produced in:

 
 
 
 

20. True sexuality is not found in:

 
 
 
 

21. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

23. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

29. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

31. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Iodine is obtained from :

 
 
 
 

38. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

39. Nannandria are:

 
 
 
 

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

 
 
 
 

41. The chloroplast in Ulothrix is :

 
 
 
 

42. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Which one of the following statement is wrong?

 
 
 
 

47. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

56. Which of the following shows heterotrichous habit?

 
 
 
 

57. Among the algae kelps are :

 
 
 
 

58. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Most of the algae are :

 
 
 
 

63. The chloroplast of Chlamydomonas are:

 
 
 
 

64. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

66. Iodine is obtained from:

 
 
 
 

67. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. The largest alga is:

 
 
 
 

71. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

72. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

74. Each chloroplast in Spirogyra bears :

 
 
 
 

75. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Agar-agar is obtained from:

 
 
 
 

80. Spirogyra represents the :

 
 
 
 

81. Which of the following is a parasitic algae?

 
 
 
 

82. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

84. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

86. Choose the correct statement about Spirogyra: