Quiz_Algae

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

 
 
 
 

2. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The alga, Spirogyra are found in :

 
 
 
 

6. What are Cyanobacteria?

 
 
 
 

7. Asexual reproductive body of Volvox is called:

 
 
 
 

8. Water bloom is generally caused by :

 
 
 
 

9. All algae have:

 
 
 
 

10. Meiosis in Ulothrix takes place:

 
 
 
 

11. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

13. Most of the algae are :

 
 
 
 

14. An alga which is rich in proteins:

 
 
 
 

15. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

16. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

21. The largest alga is:

 
 
 
 

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

 
 
 
 

23. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

28. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

30. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

32. Which of the following have a prokaryotic cell?

 
 
 
 

33. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Heterocysts are found in :

 
 
 
 

42. Spirogyra represents the :

 
 
 
 

43. Redness of red sea is due to :

 
 
 
 

44. Which fixes atmospheric nitrogen?

 
 
 
 

45. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Which of the following have algal zone?

 
 
 
 

49. Which one of the following statement is wrong?

 
 
 
 

50. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

51. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

53. Which of the following is a parasitic algae?

 
 
 
 

54. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

56. Antibiotic has been extracted from :

 
 
 
 

57. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Ectocarpus produces:

 
 
 
 

63. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. One of the distinctive feature of Spirogyra is :

 
 
 
 

68. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

70. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

75. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. True sexuality is not found in:

 
 
 
 

84. The chloroplast of Chlamydomonas are:

 
 
 
 

85. Choose the correct statement about Spirogyra:

 
 
 
 

86. The zoospores of Ulothrix are :