Quiz_Algae

1. Mostly type of zygospore in Ulothrix is:

 
 
 
 

2. Redness of red sea is due to :

 
 
 
 

3. True sexuality is not found in:

 
 
 
 

4. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

6. All algae have:

 
 
 
 

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

 
 
 
 

8. The alga, Spirogyra are found in :

 
 
 
 

9. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Iodine is obtained from :

 
 
 
 

18. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

20. The zoospores of Ulothrix are :

 
 
 
 

21. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

23. Most of the algae are :

 
 
 
 

24. Spirogyra represents the :

 
 
 
 

25. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

27. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Ectocarpus produces:

 
 
 
 

31. The chloroplast of Chlamydomonas are:

 
 
 
 

32. Most common type of conjugation in Spirogyra is :

 
 
 
 

33. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. What are Cyanobacteria?

 
 
 
 

43. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

47. Water-net is the name of:

 
 
 
 

48. Water bloom is generally caused by :

 
 
 
 

49. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

51. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Heterotrichous habit means :

 
 
 
 

60. Which one of the following statement is wrong?

 
 
 
 

61. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. The chloroplast in Ulothrix is :

 
 
 
 

66. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

68. Heterocysts are found in :

 
 
 
 

69. Which of the following is a parasitic algae?

 
 
 
 

70. Isomorphic type alternation of generation is found in:

 
 
 
 

71. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

77. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

78. Which group of algae have an incipient nucleus?

 
 
 
 

79. Asexual reproductive body of Volvox is called:

 
 
 
 

80. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

82. The largest alga is:

 
 
 
 

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

 
 
 
 

84. One of the distinctive feature of Spirogyra is :

 
 
 
 

85. Nannandria are:

 
 
 
 

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