Entrance Biology 2011

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Ethiopian University Entrance Examination (EUEE)
Biology Ginbot 2011/June 2019

1. 
What is the shape of an enzyme molecule?

2. 
In which of the following groups of organisms are all the members unicellular?

3. 
Which of the following chromosomal error creates a cell with an extra chromosome?

4. 
What is the type of scientific research that is directly concerned with studies of the way of solving problems related to human needs?

5. 
For which of the following purposes do biologist uses centrifuges?

6. 
What is the function of DNA polymerase?

7. 
Which of the following is commonly called the code of life?

8. 
Which is another name for secondary consumer?

9. 
Which type of chromosome mutation causes the human genetic defect known as trisomy 16?

10. 
In which of geologic period is the evolution of humans most probably believed to have happened?

11. 
Of the following patterns of innate behavior in animals, which one is considered the simplest?

12. 
The hypothesis which scientist tries to discover is called:

13. 
What are the compounds that have the same chemical composition, but different arrangement of atom?

14. 
Which one of the following conditions is least likely to denature an enzyme?

15. 
Respiration is:

16. 
Both photosynthesis and respiration are involved in:

17. 
Which of the following statements best describes the role of bacteria in the nitrogen cycle? Bacteria turn:

18. 
Which of the following terms best describes the number of different species in the biosphere or in a particular area?

19. 
The daily cycle of activity that occurs over a 24-hour period of time is called a:

20. 
Within a few weeks after a heavy rain, pools become teemed with tadpoles. What is the source of the tadpoles?

21. 
In what way does an antiretroviral drug help AIDS patients? It

22. 
Of the following four elements, which one is the least abundant in living thing?

23. 
If a homogenate of eukaryotic cells is spun in a centrifuge, which of the cellular organelles settles out first?

24. 
In which part of mitochondria does the Kreb's cycle take place?

25. 
What is the ultimate source of the electrons that replace those lost from the photosynthesis II during photosynthesis?

26. 
Which one of the following human diseases is NOT correctly matched with its mode of transmission?

27. 
Which clinical test is routinely performed to diagnose patients for AIDS?

28. 
Which of the following pairs of processes add CO2 to the atmosphere?

29. 
Which bacterial genus fixes nitrogen in the nodules of leguminous plants?

30. 
One of the following agricultural practices does NOT have a negative effect on biodiversity

31. 
On which of the following points do Lamarchk's and Darwin' theories of evolution agree?

32. 
What is the behavior that an animal learns to ignore a trivial stimulus that is repeated many times?

33. 
One of the following is true about a behavior that has a fixed action pattern.

34. 
If a chimpanzee piles up boxes and climbs on it to reach a bunch of banana hanging from a ceiling, which behavior is manifested?

35. 
In which of the following is the current state of biology more of promises than realized major contributions?

36. 
Which of these elements is known to have less 10% occurrence in many cells?

37. 
One of the following is non - carbohydrate molecule.

38. 
The industrial use of enzymes is helpful for the environment as it contributes to reduction of CO2 emission. In which of the following is there more mass of CO2 emissions saved per ton of products by using enzyme technology rather than traditional method?

39. 
Which model of enzyme action requires that the shape of the substrate molecule is complementary to that of the active site?

40. 
If the average diameter of human red blood cell is 0.0000007m, which one is its correct diameter when expressed in a smaller unit?

41. 
Which procedure allows biologist to separate different cellular organelles and study their structures and compositions separately?

42. 
How many ATP molecules are produced during the complete cellular respiration of one glucose molecule?

43. 
What is the main method of transmission of botulism?

44. 
From which group of microorganism was the first antibiotics produced?

45. 
What is capsid?

46. 
What is general name of crop plants that add nitrogen to the soil bacause of their symbiotic association with certain types of bacteria?

47. 
If two parents with genotype ''Aa'' are cross-bed and that there is no codominance in the inheritance pattern, what proportion of the offspring would have genotypes exactly like that of their parents?

48. 
Which of the following is an example of a cell formed by reduction division?

49. 
One of the following sources of evidence provides a more direct support to the process of Charles Drawin's theory of evotion.

50. 
Which animal behavior pattern is best illustrated by the famous Pavlov's dog?

51. 
Through which of the following methods can blood be separated into its cellular and fluid parts?

52. 
The most abundant inorganic molecule in the atmosphere that traps heat is:

53. 
When glucose molecules are joined by α-linkage which of the following carbohydrate is obtained?

54. 
Which of the following statements is NOT correct about the effect of temperature on enzymes.

55. 
Organelles in the cytoplasm that are known as 'power house' of the cell are:

56. 
Which of the following is NOT a function of lysosomes?

57. 
The different steps for complete aerobic respiration are:

58. 
Which of the following processes indicate the process of photosynthesis?

59. 
The active sluge method Sewage treatment is based on the principle of

60. 
When an organism containing a gene which does NOT belong to it and is derived from somewhere else, the organism is said to be:

61. 
When is reverse transcriptase a useful enzyme? When:

62. 
If you were to travel from the Arctic Circle to the Equator, what sequence of biomes would you most likely pass through?

63. 
The fact that Ethiopia is a regional center of biological diversity which of the following diversity is expressed?

64. 
Under ideal conditions and unlimited resources, continuous population growth pattern is known as:

65. 
If colour blindness is sex linked and a colour-blind man marries the daughter of a colour-blind person, which of the following is their progeny?

66. 
Transfer of a genes through a virus is called:

67. 
Which of the following concept is attributed to Charles Darwin?

68. 
Occurrence of endemic species in Ethiopia is due to:

69. 
''Skinner box'' is used to for experiment in:

70. 
Which of the following factor affects enzyme activity without denaturing the enzyme molecule?

71. 
Which pf the following can reverse or reduce an allosteric enzyme inhabitation?

72. 
In what way do retro viruses differ from other RNA viruses?

73. 
As an ecological succession passes from lower to a higher seral stage, which of the following will NOT happen?

74. 
What is the population growth phase of the current world population?

75. 
If allowed to self-pollinate, which of the following pea genotype would produce progeny with 9:3:3:1 phenotypic ratio?

76. 
How many nucleotides are needed to form codons for a protein that is 100 amino acids long?

77. 
Which of the following is the common idea held by all the creationists?

78. 
Among the following which one had the eranial capacity of about the same size as that of Homo sapiens?

79. 
One of the following behavioral pattern of human babies is more or less similar to the imprinting of newly hatched goose?

80. 
In the human body, which conditions are generally considered optimum for most enzymes?

81. 
Which of the following has highest water potential than all the other?

82. 
Which of the four stage in the aerobic respiration of glucose does NOT produce ATP?

83. 
In the experiment to study photosynthesis, a plant was provided with radioactive carbon dioxide as a metabolic tracer and the radioctive carbon was incorporated first into oxalocatate. Which one of the following would best characterize this plant

84. 
Which of the following is a correct statement about the difference between a bacterium and virus?

85. 
Which of the following statement about transgenic organisms is correct?

86. 
If radioactive substance that weights 5,600 grams and has half-life of 100 years is left with 700 grams, for how long has the decaying activity been undergoing?

87. 
What is the survival value of a social behavior in which some birds move in large groups?

88. 
What is biome of world where succelent plants are commonly found?

89. 
Which of the following statement is NOT correct?

90. 
Lipids to become sphingolipids must contain:

91. 
If other conditions were to remain constant, which one of the following changes would explain a reduce rate of activity in an enzyme -controlled reaction? Increase in

92. 
Which of the following statement best describes an induced fit-model?

93. 
Which of the following happens if nucleous is missing in a cell?

94. 
Which one is first inhibited if a cell contains excess of ATP?

95. 
Which of the following results in the production of oxygen during photosynthesis?

96. 
Which of the following happens during intergration of viruses in host cells?

97. 
The following statements are correct regarding ecological succession EXCEPT:

98. 
Which one of the following phenomena supports Drawin's concept of natural selection in organic in organic evolution?

99. 
One of the following is NOT true about operant conditioning.

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