100 Biology Info Questions Practice Quiz Online Mcq’s Test with Answers

1. Quantum yield of photosynthesis is:

2. Photosynthesis consists of two well-defined phases, which are:

3. The elimination of wasteful metabolites mainly of nitrogenous nature is called as:

4. In 1997, scientists in Scotland succeeded in cloning a:

5. The sedimentation coefficient of prokaryotic ribosome is:

6. Homeostasis is the central requirement in the maintenance of:

7. Lysosomes also releases enzymes for extra cellular:

8. Plants use evaporative cooling to manage with high:

9. The study of life in seas and oceans comes under the heading of:

10. In electron microscope the resolution of microscope ranges between ________.

11. Species is the basic unit of:

12. The animal excreting urea as the nitrogenous waste are called as:

13. Edward Jenner first developed the technique of vaccination in:

14. The crossing of different varieties of plants or even species is called:

15. Extinction of a species in a food chain is compensated by:

16. Driving force of ecosystem is:

17. The regulation of amount of water and solutes in the body is termed as:

18. Photosynthetically, least effective radiation is:

19. Science is a systematized knowledge and based on:

20. Polioviruses are:

21. Which cells do not respire?

22. A branch of Biology, which deals with the study of chemical components  and chemical process in living organisms is known as:

23. Contraction and relaxation are the characteristics of:

24. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:

25. The cell theory was formulated by:

26. Currently, the number of species of organisms, known to science is:

27. Photosynthesis is:

28. Darwin published "The origin of Species" in:

29. The transfer of energy from one trophic level to another is called as:

30. A virion is a:

31. Plants use evaporative cooling to manage with high:

32. Most fossils are found in:

33. The study of microorganisms which include bacteria, viruses, protozoa and microscopic algae and fungi comes under:

34. Temperature phage may exist as:

35. Kingdom Animalia includes all animals which are:

36. Meristem is a:

37. Which is the last electron receptor in respiration?

38. The prokaryotic cell can divided by:

39. A class is a group of related:

40. The main cause of extinction of species include:

41. In the coming years, skin = related disorders will be more common due to:

42. A pollutant which causes mental illness is:

43. Lamarck published his theory of evolution in:

44. The nucleoside forms a nucleotide after combining with a:

45. Science is a systematized knowledge and based on:

46. Two different molecules, belonging to different categories, usually combine together to form:

47. Archaeopteryx is a fossil of:

48. Retroviruses cause the disease:

49. It is very difficult to define:

50. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:

51. In humans, thermostat responds to changes in temperature above and below a set point which is:

52. Eukaryotes include animals, plants, fungi and:

53. Major unit of ecology is:

54. It is the beautiful and delicate sponge made up of glass frame work:

55. The entire cell wall of prokaryotic cell is often regarded as a single huge molecule known as:

56. The list of plants and animals which if not protected would soon be extinct is known as:

57. Soyabeans have been made resistant to a common:

58. The means by which recombinant DNA is introduced in a host cell is called:

59. The study of viruses is called as:

60. The gizzard is used for crushing food in:

61. Which is the best source of renewable energy?

62. Succession begins by a few hardy invaders called:

63. About three billion base pairs are present in the genome of a:

64. The cell was discovered by:

65. Succession begins by a few hardy invaders called:

66. Retroviruses cause the disease:

67. Actual place or location where an organism lives is called its:

68. In Ecuador, factor coverage has been reduced by:

69. What is the number of insects in percentage among known species of organisms:

70. The five kingdom system of classification was proposed by:

71. The oldest known fossils are:

72. Uric acid is produced from the breakdown of:

73. The name animalia is derived from Latin, anima which means:

74. Perhaps the most distinctive feature of prokaryotic cell is its:

75. New ribosomes are assembled in the:

76. The asexual reproduction in sponges is by:

77. Nearly 70% of the total global carbon is found in:

78. Biology is the study of:

79. The protection of internal environment from the harms of fluctuations in external environment is called as:

80. A pollutant which causes mental illness is:

81. The body of birds is covered by:

82. Evolutionary change often produces new species and then increases:

83. The first step of aerobic respiration is:

84. The whole metabolism of the cell is controlled by the proteinaceous agents called:

85. Dark reaction is also called as:

86. A very useful method of DNA finger printing is:

87. Name the first microbe to have the genome completely sequenced:

88. Endangered species of plants have been recorded to more than:

89. Fungal cell wall is made up of:

90. Urine is preferably used as a vehicle for biotechnology product than:

91. Nucleohistones are present in:

92. A basic knowledge of Biochemistry is essential for understanding:

93. Carolus Linnaeus developed the system of nomenclature which is called:

94. Algae have been found to reduce pollution of heavy metals by:

95. There is a need for lead free petrol to reduce the:

96. Pigs could be reservoirs to:

97. Which animals show no inter relationship (i.e.,neutralism)?

98. There is a need for lead free petrol to reduce the:

99. Polioviruses are:

100. The study of viruses is called as: