Quiz_Algae

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

13. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

19. Each chloroplast in Spirogyra bears :

 
 
 
 

20. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Among the algae kelps are :

 
 
 
 

25. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

34. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

36. Isomorphic type alternation of generation is found in:

 
 
 
 

37. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Choose the correct statement about Spirogyra:

 
 
 
 

41. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. One of the distinctive feature of Spirogyra is :

 
 
 
 

45. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

46. Most of the algae are :

 
 
 
 

47. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

49. Ulothrix produces :

 
 
 
 

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

 
 
 
 

51. The largest alga is:

 
 
 
 

52. Ectocarpus produces:

 
 
 
 

53. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Meiosis in Ulothrix takes place:

 
 
 
 

57. Heterocysts are found in :

 
 
 
 

58. What are Cyanobacteria?

 
 
 
 

59. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Nannandria are:

 
 
 
 

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

 
 
 
 

64. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

66. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

67. Synzoospore is produced in:

 
 
 
 

68. The chloroplast of Chlamydomonas are:

 
 
 
 

69. Water bloom is generally caused by :

 
 
 
 

70. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Heterotrichous habit means :

 
 
 
 

74. The word “sea weeds” is used for:

 
 
 
 

75. The alga, Spirogyra are found in :

 
 
 
 

76. Asexual reproductive body of Volvox is called:

 
 
 
 

77. Which fixes atmospheric nitrogen?

 
 
 
 

78. Which of the following shows heterotrichous habit?

 
 
 
 

79. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

81. Iodine is obtained from:

 
 
 
 

82. Iodine is obtained from :

 
 
 
 

83. Most common type of conjugation in Spirogyra is :

 
 
 
 

84. Which group of algae have an incipient nucleus?

 
 
 
 

85. Which of the following have a prokaryotic cell?

 
 
 
 

86. Water-net is the name of: