Quiz_Algae

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

10. Which of the following shows heterotrichous habit?

 
 
 
 

11. All algae have:

 
 
 
 

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

 
 
 
 

13. The largest alga is:

 
 
 
 

14. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

16. Which group of algae have an incipient nucleus?

 
 
 
 

17. Most of the algae are :

 
 
 
 

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

 
 
 
 

19. One of the distinctive feature of Spirogyra is :

 
 
 
 

20. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Synzoospore is produced in:

 
 
 
 

24. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. The flagella of Chlamydomonas are:

 
 
 
 

28. Water bloom is generally caused by :

 
 
 
 

29. Heterotrichous habit means :

 
 
 
 

30. Which of the following have a prokaryotic cell?

 
 
 
 

31. The word “sea weeds” is used for:

 
 
 
 

32. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. True sexuality is not found in:

 
 
 
 

36. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

38. Antibiotic has been extracted from :

 
 
 
 

39. Heterocysts are found in :

 
 
 
 

40. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

45. Cap cells are found in the filament of:

 
 
 
 

46. Most common type of conjugation in Spirogyra is :

 
 
 
 

47. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

52. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

54. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. An alga which is rich in proteins:

 
 
 
 

62. Water-net is the name of:

 
 
 
 

63. Iodine is obtained from:

 
 
 
 

64. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Ulothrix produces :

 
 
 
 

68. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

70. Asexual reproductive body of Volvox is called:

 
 
 
 

71. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

78. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

80. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Which of the following have algal zone?

 
 
 
 

85. The chloroplast in Ulothrix is :

 
 
 
 

86. Ulothrix and Spirogyra are filamentous and :