Unit One: The Science of Biology
1. Which of the following biological instrument used to culture microorganisms in the Microbiology
laboratory?
A. Incubators B. Test tube C. Centrifuge D. Petridishes
2. Which one of the following biological tools used mainly in laboratory?
A. Microscope B. Centrifuge C. Petri dishes D. All of the above
3. What is genetic engineering?
A. The study of the genetic material B. The study of microorganisms
C. Transfer of the genetic information D. The ways of creation of the cells
4._____ used to separate organs such as heart, kidney and lungs to find out their internal structure
A. Dissecting kits B. Petri dishes C. Explants D. None
5. One of the following is a laboratory tools .which is it?
A. Balance B. Petri dishes C. microscope D. plant press E. all, except D
6. The lens system of a microscope enables us to see two very closely placed objects separately is due to:
A. Magnification B. C. Resolution D. Observation
7. In an experiment what do we call the group that does have the variable being stated?
A. Control group B. Logical group C. Experimental group D. Observational group
8. Louis Pasteur disproves theory of biogenesis by using special materials known as:
A. Jars C. spontaneous generation
B. rotten meat flies objects D. Swan necked flasks
9. Which one of the following tools used in both laboratory and flied
A. Quadrants B. Centrifuge C. Data logger D. Pipette
10. Which one of the following is useful for ecological field working?
A. Quadrant B.PH kits C. Balance D. Theodolite E. All
11. In the scientific method, which one of the following is used to test a hypothesis?
A. Observation B Implementation C. Theory D. prediction E) None
12. If after dividing plant materials into groups, an experimenter has applied a fertilizer to group ‘A’ plant
but not to group “B” plant. Plant B is called?
A. Control group B. Test group C. Experimental group D. Variable group
13. _________Used to extract or separate tissue for anatomical study
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Unit One: The Science of Biology
A. Quadrant B. Centrifuge C. Agar D .Dissecting kit
14. An experiment in which extraneous variable had been controlled is:
A. field experiment C. Cause and Effect
B. Fair test D. Laboratory experiment
15_________used to measure the height or trees slopes of an area
A. flow meter B. theodolite C. Notes book D. Quadrant
16. Which one of the following is NOT controlled variables in tomato seed germination experiment?
A. Temperature B. Light C. Carbon dioxide D. water
17. _______ to separate organs such as heart kidney and lungs to find out hair internal structure?
A. Test tubes B. Autoclave C. Centrifuges D. Dissecting kits E) Oven
18. Which one of the following is study the development of new drugs and vaccines?
A. Radiographer C. Biomedical research
B. Laboratory technician D. Microbiology
19. Which one of the following is NOT important to reduce the spread of AIDS?
A. from mother to child during pregnancy B. Restrict the number of sexual partners
C .Not sharing infected needles D .Encourage male circumcision
20. An apparatus used to sterilize materials in biological laboratories:
A. Dissecting kit C. Oven
B. Autoclave D. Incubator E) UV sterilizer
21. Ethology is the study of____________
A. Fungi B. Birds C. Fishes D. Ancient life E. Animal behavior
22. Which one of following does on the defense mechanisms of the body of human & animals?
A. Epidemiology B. Immunology C. Parasitology D. Etiology
23. One of the following is only laboratory tools
A. Petri dishes B. Quadrate C .Balance D. Data logger E) None
24. Accuracy means?
A. Measure how dependable our results are
B. Refers to how precisely you measure or count something
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Unit One: The Science of Biology
C. Whether or not our experiment measures what it says it is measuring
D. The ability of a measurement to match the actual value or the quality being measured.
E. A& c F. B& D
26. From which of the following do scientist usually formulates Scientific Laws?
A. Observation C. Experiment
B. Prediction D. Theory E. B & D
27. Which of the following field of biology study about the origin & relation of life?
A. Biomedical research C) Palebiology
B. Astrobiology D) None
28. Which of the field of biology uses micro organism & Enzymes to benefit mankind?
A. Microbiology B. Biotechnology
C. Biochemistry D. Cytology
29. HIV and similar viruses are called __________
A. Retrovirus B. Bacteriophages
C. DNA viruses D. RNA viruses E) Human Virus
31. Colorimeter is used to measure
A. How much moisture in a liquid B)How much light is passing in a liquid
B. How much ions in a liquid D) How much oxygen in the water
32. Which one of the ff a virus that inserts its RNA into the host cell where it is reverse transcribes to
DNA?
A. Retrovirus B. Bacteriophages
C. DNA viruses D. RNA viruses E) Human Virus
33. Which of the following laboratory tools are uses for to hatch eggs?
A. Autoclave B. Petri dishes C. Incubators D. centrifuges
34. Which one of the following is not component of dissecting kits?
A. Magnifying glass C. plant press
B. Forceps D. scissors E) None
32. What is the main purpose of observation in the scientific method?
A. Formulation of hypothesis B. Identification of problems
C. Acceptance of hypothesis D. Rejection of hypothesis E) Conducting experiments
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Unit One: The Science of Biology
33. If an experiment is designed to determine were a saliva has an effect to bring any change on starch &
has two test tubes (A and B) containing equal amount of slices and he or she applies saliva to test
tube A and not to test tube B .What is the group B called as?
A. Control group C. Experimental group
B. Variable group D. Sample group
34. In the scientific method which one of the following is used to test a hypothesis?
A. Observation C. Experiment
B. Theory D. prediction E) Fair test
35. All of the ff are the use of Petri dish, except. Identify?
A. To culture bacteria and to propagate plants
B. To show how effective antibiotics are against bacteria
C. To show well d/t concentration of enzymes digest a substance
D. Increase the growth of plants and bacteria
36. Which of the ff stage of scientific methods is called an educated guess?
A. Hypothesis C. Observation
B. Experimentation D. prediction E) Conclusion
42. In an experiment what do we calls the group that doesn’t receive the variable being tested
A. Replication group C. Experimental group
B. Control group D. observational group
42. Select the field of biology that with the study of cells structures and functions
A. Histology B. Cytology C. Ecology D. Antrophology
43. The primary reason for including of control group within the design of an experiment is to:
A. Provide more data that one can perform a sophisticated analysis
B. Ensure that the result obtained are due to a d/t any one factor
C. Demonstrate in what way they expect was performed in correctly
D. Test the effect of more than one variable
44. The primary target of the HIV/AIDS?
A. Phagocytes B. T- help cells C. RBC D. any WBCS
45. Asteriobiolagy study about
A. the development of new drugs & vaccines
B. the possibilities of the life on the other planets
C. the uses and characteristics of microorganisms
D. the origin and evolution of life on the earth
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Unit One: The Science of Biology
48. An observation about which there is no doubt is a
A. Hypothesis C. Facts
B. Theory D. Conclusion E) Principles
49. The resolution of a microscope refers to
A. Its power to increases the size of an objects B. Its ability to show detail and clear
C. Its series interchangeable of objective lens D. Its power to scan the surface of an object
50. The presence of control group in an experiment makes the conclusion
A. Accurate C. Valid
B. Reliable D. Predictable E) All, except D
51. Which refers to how precisely one measures or counts something.
A. Accuracy B. reliability C. Validity D. Precision
52. Which of the following is the correct process of viral infection?
A. penetration –attachment—assembly- replication –release
B. Attachment –replication ---penetration ---assembly ---release
C. Attachment -- replication ---replication ----releases- assembly
D. Attachment- replication- replication- release
54. From the following _________is genetic material of retrovirus is:
A. DNA B. cell membrane C. RNA D. DNA & RNA E) ____
55. From the following one refers the factors other than independent variable that kept constant in order
to avoid influence of the experimental results.
A. Dependent variable B. Constant variable C. Confounding variable D. Independent variable
56. Scientific experiments seek to establish _______and _______
A. Theory & hypothesis B. validity & reliability C. cause & effect D. Experiment & Observation
57. __________refers to how precisely a measurement is made.
A. Scientific report B. Accuracy C. Experiments D. Biological research
58. Safety in biological laboratory should be strictly practiced because
A. there may be highly hazardous (dangerous) chemical to be used
B. there may be potentially pathogenic organism cultured in laboratories
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Unit One: The Science of Biology
C. to maintain sustainability for lower Grade students D. All of the above
58. Machine that spins to separate solid from liquids.
A. Quadrate B. Ultracentrifuge C. Centrifuge D.
59. The factor that the scientist changes or manipulates
A. Dependent variable B. Independent variable
C. Controlled variable D. confounding variable
61. ____________is a variable that might influence the results that you can’t control
A. Controlled variable B. Confounding variable
C. Independent variables D. Dependent variable
Consider the following experimental study and answer the question
I) the nucleus of cell is essential for life
II) An amoeba with its nucleus removed
III) The absence of the nutrients is the main cause for the death of the amoeba
IV) A cell without a nucleus removed
62. In this experimental study the control group is__________
A. the ameba provided with nutrients B. the non –nucleated amoeba
C. other is no controls group D. All of the above are control group
63. Which of the following is field of biology the study the possibility of life on the other planet?
A. Microbiology B. Paleobiology C. physiology D. Astrobiology
64. Which of the ff field of biology incorrectly matched?
A) Physiology-Deals with the functions of the body
B) Biotechnology-Deals with the use microorganism and enzymes
C) Morphology-The study of the internal structure of organisms
D) Cryptogamy-The study of flowerless and seedless plants
E) Biometry-The analysis of biological data by means of mathematical techniques
65. Magnification of microscope is
A. The ability to enlarge B. The ability to separate
C. The ability to diminish D. The ability to collapse
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Unit One: The Science of Biology
66. Induction is involved in
A. Testing hypothesis B. Discovering correlation among facts
C. Developing hypothesis D. Conducting experiments E) None of the above
67. Anti- HIV/AIDS clubs are today common in schools and college what is their contribution to fight
against the pandemic?
A. Provide medication for AIDS patients
B. Encourage girls to have boy friends
C. Provide awareness about the problem among students
D. Encourage one to one relationship
68. Being repeated scientific experiments is known as
A. Guess B. Analysis C. Evaluation D. class room experiment
69. Which of the following is a factor that can’t be controlled which many influence the result of the
experiment.
A. Independent variable (IV) C. confounding variable
B. dependent variable (DV) D. Controlled variable
70. Which of the following measure of how much light passes through a liquid?
A. Colorimeter B. Thermometer C. Binocular D. Hand lens E) Borer
71._________the variable that the experiment changes to see if this affect the performance of the
dependent variable
A. Dependent variable C. independent variable
B. Unknown Variable D. Reliability of experiment E) None
72. What objective must be in place when you remove a slide or place a new slide on the stage of your
microscope?
A. middle power B. oil immersion C. high power D. Low power
74. Theory is
A.Is always true B.Is the opening statement of an experiment
C. Is a problem to be solved D. May be revised or replaced E) All of the above
75. A statement that describes what scientists expect happen every time under a given set of conditions is
called __________
A. Law B. Inference C. Observation D. Prediction E. Hypothesis
76. Dissecting kit does not contain
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Unit One: The Science of Biology
A. Scalps B. Forceps C. magnifying glass D. None
77. Repeat many times ourselves in the experimental science is very important for all of the following,
except?
A) To observe the general patterns B) To exclude the anomalous results
C) To calculate an average results D) To use the special apparatus E) All
78. From which you make a Prediction in Scientific experiments?
A) Research Observations B) Research Hypothesis
C) Research Questions D) Research Problems E) Research Conclusion
79. Planning investigation containing all, except?
A) A clear methods of changing the independent variables
B) A clear methods of measuring the dependent variables
C) A clear methods of controlling other potential confounding variables
D) Methods of ensuring appropriate levels of accuracy, reliability & validity
E) All of the above
80. A clear description of the experimental procedures includes?
A) Diagram of apparatus B) concentration of chemicals
C) Types and number organisms D) details of any experiments E. All
81. The source of the conclusion the in scientific experiment is:
A) Observation B) Discussion C) Results D) Procedure
82. Which one of the following is an honest assessment of the limitations of procedures to pointing out
any unavoidable limitations and inaccuracies?
A) Observation B) Acknowledgement C) Results D) Procedure E) Evaluation
83. To gain an estimate of the abundance of organism in an area?
A) Quadrats B) Pitfall traps C) Altimeter D) Transect line
84. Which of the sentence is true?
A) The use of quadrat is confined to site on the land
B) The steps in scientific method are the same in all types of scientific researches
C) The applied science use the facts of principle to meet certain human needs
D) In the experiments the control group is a group that is being experimented
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Unit One: The Science of Biology
E) None of these
85. Testing a hypothesis through experiments is important to:-
A) Investigating solution for problems C) Solve the problems
B) Control the Variables D) Discover facts and principles E) All
86. Which one of the following is not the basis for problem identification in scientific method?
A) Observations B) Facts C) Imagination D) None
87. Controlled experiment is used to increase the quality of the experiment of ________
A) Accuracy B) Reliability C) Validity D) All
89. A hypothesis that stands the test by different people at different places through time
A) Observation B) Experiment C) Prediction D) Theory
90. Based on four steps listed below, choose the alternative that shows the correct sequence of application
in a scientific work in biology
1.Formulating the hypothesis
2.Making observations
3.Testing a hypothesis
4.Conducting experiments
5.Drawing initial conclusion
A) 2,1,3,4,5 B) 5,2,1,4,3
C) 2,4,1,3,5 D)2,3,4,1,5 E) None
91. Which one describes the importance of scientific method for biologist?
A) To discover facts and principles B) To solve problems
C) To formulate laws and theories D) All of the above
92. The term used to describe a condition under the study is__________
A) Independent Variable B) Dependent Variable
C) Controlled Variable D) Confounding Variable
93. Which one of the ff is not measuring tools of biologist?
A) Balance B) Thermometer C) Cylinder D) Syringe E) None
94. The name for the collection nutrient to grow microorganisms
A) Agar B) Nutrient medium C) Petri dishes D) Culture E) None
95.___________a technique of growing plants from few cells on special agars
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Unit One: The Science of Biology
A) Genetic Engineering B) Cloning
C) Micro propagation D) Macro propagation
96.____________ used to separate plant and animal cells
A) Bunsen burner B) Ultracentrifuge C) Oven D) Loop
97. All of the following equipments are used in collecting animals, except?
A) Pit fall traps B) Sweep nets C) Funnel D) Potter (aspirator) E) All
98. The major route of HIV transmission is
A) From mother to child B) Sexual intercourse
C) Sharing infected sharp objects D) Transfusion of infected blood E) All
99. The ability of a microscope to distinguish between two points that are close together
A. Resolution B. Magnification C. Culturing D. Resolving power
100. A field tool used to draw a map of an area accurately
A. Global positioning system B. Theodolite C) Flow meter D) Data logger
101. Why is the Human Immunodeficiency Virus (HIV) called a retrovirus? Because it
A. causes a fatal disease called AIDS B. infects T-helper cells
C. converts its genetic material from DNA into RNA during its life cycle
D. converts its genetic material from RNA into DNA during its life cycle
102. Identify the correct tool-function pairing
A. Flow meter-separates solids from liquids C. Data logger-records information
B. Petri dish-captures insects D. Centrifuge-measures height
103. The measure of how dependable and consistent result of an experiment is known as
A. validity B. reliability C. accuracy D. anomalous result
103. Scientific method is
A. a method of transferring knowledge C. a way of applying knowledge
B. a way of expressing ideas D. a process by which scientists approach their work
E) All of the above
104. The variable of an experiment the scientist changes or manipulates is
A. a controlled variable C. an independent variable
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Unit One: The Science of Biology
B. a confounding variable D. a dependent variable
105. The reliability of an experiment is increased by all, except
A) Carrying out repeat experiments B) Minimizing personal judgments
C) Working as quickly as possible D) Using the most appropriate apparatus
106. A theodolite is:
A) An item of laboratory equipment that measures height
B) An item of field equipment that measures height
C) An item of field equipment that measures slope
D) An item of laboratory equipment that measures slope
107. Fieldwork is important in biology because biologists can gather information about:
A) Individual organisms in their natural surroundings
B) How organisms are distributed in a particular area
C) How the organisms in an area change over time
D) all of the above
108. Pitfall traps are used to catch:
A) Flying insects B) Small ground-dwelling animals
C) Damaged plants D) all of these
109. The ‘white sheet and bright bulb’ technique used to trap flying insects at night gives:
A) A good indication of numbers but a poor indication of types found in the area
B) A good indication of the types found in the area but a poor indication of numbers
C) A good indication of both types and numbers
D) A poor indication of both types and numbers
110. Pale biologist
A) Studies about Parasites B) Studies about insects C) Studies about Environments
D) Research into final evidences of life forms in other planets E) None of the above
111. Studies about the and evolution of life
A) Paleobilogy B) Astrobiology C) Neurobiology D) Ethionology E) None
112. The process of cutting apart separate tissues of an organism for studying structure of an organism
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Unit One: The Science of Biology
A) Dissection B) Dissecting kit C) Dissecting Microscope D) Observations E) None
113. False statement about the Quadrat
A) Used for sampling plant population B) placed randomly on the ground
C) Record numbers and types of organisms D) None of the above
114. The major areas in which modern Biotechnological application are important include all, except?
A) Agriculture B) Energy production C) Medicine D) Food production E) None
115. The Biologist are try to help deal with the problem of a growing population by:
A) Developing crops with more yields B) Providing more effectives contraceptive
C) Developing disease resistant crops D) All of the above
116.___________concerns weather an experiment is measuring what it says?
A) Validity B) Accuracy C) Reliability D) None
117. ________ the technique of altering of the characteristics of an organism by inserting genes from
donor to the recipient is:
A) Cloning B) Monoclonal antibody C) Genetic Modification D) Transfusion E) None
118. Which of the following is carried out at different stages of scientific methods?
A) Gathering information B) Forming hypothesis
C) Conducting experiments D) Drawing conclusion E) None of the above
119. The name for the odd result that do not fit general pattern in the scientific experiment is:
A) Accurate B) Anomalous C) Normal D) Specific E) None
Use the following information to answer Q120
Discussion Acknowledgement Evaluation
Conclusion Introduction
Limitation Title
Results Summery
References Procedures
120. Show the correct sequence of scientific reporting writing format.
121. Identify the incorrectly matched between scientific reporting writing format and its description?
A) Title-A clear statement of your investigation
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Unit One: The Science of Biology
B) Abstract- statement of main finding
C) Procedures-Materials and methods
D) Evaluation-The honest assessment of the draw of procedures
E) None of the above
122. The term for interpretation of your experimental result in the scientific research is:
A) Discussion B) Conclusion C) Summary D) Evaluation E) Limitation
123. It enables to see unstained transparent living samples?
A) Phase –contrast Microscope B) Interference Microscope
C) Dissecting Microscope E) Polarizing Microscope
124. Identify the incorrectly matched between Microscope and its function?
A) Stereo microscope-Examination large objects
B) Phase contrast Microscope- Study phenomenon in living cells
C) Interference Microscope-Distinction of smaller objects
D) Polarizing Microscope-Differentiate b/n d/t types of materials in another substance
E) None of the above
125. Used to have a better vision of specimens contrast under the microscope?
A) Staining B) Focusing C) Mounting D) Caution D) None
126. The ability of a microscope to distinguish between two points that are close together
A. Resolution B. Magnification
127. Growing micro-organisms on agar in a petridish
A. Culturing B. Cloning
128. A field tool used to draw a map of an area accurately
A. Global positioning system B. Theodolites
129. Why is the Human Immune deficiency Virus called a retrovirus? Because it
A. causes a fatal disease (AIDS)
B. infects T-helper cells
C. converts its genetic material from DNA into RNA
D. converts its genetic material from RNA into DNA
130. Identify the correct tool-function pairing
A. Flow meter: separates solids from liquids C. Data logger: records information
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Unit One: The Science of Biology
B. Petri dish: captures insects D. Centrifuge: measures height
131. The measure of how dependable and consistent result of an experiment is known as
A. validity B. reliability C. accuracy D. experiment
132. Scientific method is
A. a method of transferring knowledge C. a way of applying knowledge
B. a way of expressing ideas D. a process approaching works
133. The variable of an experiment that the scientist changes or manipulates is
A. a controlled variable C. an independent variable
B. a confounding variable D. a dependent variable
134. Write the four main ways in which HIV can be transmitted.
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