biology solved mcqs
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BIOLOGY SOLVED MCQS NOTES FOR PPSC, NTS, CSS, PMS, OTS
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Biology Solved Mcqs Notes For Ppsc,
Nts, Css, Pms, Ots
1. QUESTION: The Study of cells at molecular level is called
A. Morphology
B. Palaentology
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C. Molecular Biology
D. Microbiology
CORRECT ANSWER IS: Molecular Biology
2. QUESTION: Microbiology deals with the study of
A. Algae, Bacteria
B. Fungi, Protozoa
C. Viruses
D. All of them
CORRECT ANSWER IS: All of them
3. QUESTION: Marine biology deals with the study of
A. Protozoa
B. Bacteria
C. Seas and Oceans
D. Algae, Fungi
CORRECT ANSWER IS: Seas and Oceans
4. QUESTION: Social Biology deals with the study of
A. Service Industries
B. Communalization
C. Social Behaviour
D. Both a and b
CORRECT ANSWER IS: Both a and b
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5. QUESTION: Highly organized living organisms are composed of
A. One or more cell
B. One cell
C. Two cells
D. Three cells
CORRECT ANSWER IS: One or more cell
6. QUESTION: Which can response to changes in their envoirnment
A. Living Organism
B. Non-Living Organism
C. Both a and b
D. None of a and b
CORRECT ANSWER IS: Both a and b
7. QUESTION: Environmental biology deals with the study of
A. Relationship of organisms with socitey
B. Relationship of organisms with their envoirnment
C. Relation of organisms with technology
D. None of the above
CORRECT ANSWER IS: Relationship of organisms with their
envoirnment
8. QUESTION: Physical and chemical parameters of water bodies are
the example of
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A. Ecobilogy
B. Parasitology
C. Microbiology
D. Fresh water biology
CORRECT ANSWER IS: Fresh water biology
9. QUESTION: The Study of mode of transmission belongs to
A. human biology
B. Biotechnology
C. Microbiology
D. Parasitology
CORRECT ANSWER IS: Parasitology
10. QUESTION: Number of natural occurring chemical element is
A. 92
B. 93
C. 94
D. 95
CORRECT ANSWER IS: 92
11. QUESTION: How many chemical reactions are present in simple
organism for maintaining its life?
A. Hundreds
B. Thousands
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C. Millions
D. Billions
CORRECT ANSWER IS: Hundreds
12. QUESTION: How many elements are used in forming the chemical
compound
A. 92
B. 16
C. 94
D. 17
CORRECT ANSWER IS: 16
13. QUESTION: Highly structure protoplasm is
A. Genetical substance
B. Non-Living Substance
C. Living Substance
D. None of the above
CORRECT ANSWER IS: Living Substance
14. QUESTION: The Start of the study of biological organization at
different level forms
A. Sub atomic particle
B. Community
C. Atomic Particles
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D. Both a and c
CORRECT ANSWER IS: Both a and c
15. QUESTION: A combination of atom belong to
A. Atom
B. Micro Molecules
C. macro Molecules
D. None of the above
CORRECT ANSWER IS: None of the above
16. QUESTION: Organs are composed of ____________.
A. Tissues
B. cells
C. units
D. None of the above
CORRECT ANSWER IS: Tissues
17. QUESTION: The properties of chemical elements differ from one
another in
A. Non-living word
B. Living word
C. Both a and b
D. None of the above
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CORRECT ANSWER IS: Non-living word
18. QUESTION: Biological organization has
A. Number of processes
B. degree of complexity
C. Regulatory function
D. All of these
CORRECT ANSWER IS: All of these
19. QUESTION: Member of __________ species inhabiting the same
area called population
A. One
B. Two
C. Three
D. More Than one
CORRECT ANSWER IS: One
20. QUESTION: Micro molecules having low molecule weight are
A. Oxygen
B. Strach
C. Proteins
D. CO2, H2O
CORRECT ANSWER IS: CO2, H2O
21. QUESTION: Glucose and amino acids are ________ Molecules
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A. Organic
B. Inorganic
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Organic
22. QUESTION: How cells and Organelles are formed
A. From a particular way of Macro molecules
B. from a particular way micro Molecules
C. Form particular way of macro and micro molecules
D. None of the above
CORRECT ANSWER IS: Form particular way of macro and micro
molecules
23. QUESTION: Fungi animals and plants may consist of upto
A. Millions of cells
B. Billion of cells
C. Trillions of cells
D. None of the above
CORRECT ANSWER IS: Trillions of cells
24. QUESTION: A group of similar _________ is called tissue
A. Organs
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B. Cells
C. Units
D. Structure
CORRECT ANSWER IS: Cells
25. QUESTION: __________ have a limited number of organelles
A. Prokaryotes
B. Eukaryotes
C. organ system
D. None of the above
CORRECT ANSWER IS: Prokarytoes
26. QUESTION: In animals coordination is achieved by the means of
A. Respiratory System
B. Circulatory System
C. Digestive System
D. Nervous System
CORRECT ANSWER IS: Nervous System
27. QUESTION: Long term regulations of activities is brought in plants
by
A. Harmones
B. Minerals
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C. Salt
D. Organs
CORRECT ANSWER IS: Harmones
28. QUESTION: __________ have a rich number of organelles
A. Plants
B. Eukaryotes
C. Animals
D. Prokaryotes
CORRECT ANSWER IS: Eukaryotes
29. QUESTION: ________ are involved in anchoring inplants
A. Roots
B. Stem
C. Soil
D. Water
CORRECT ANSWER IS: Roots
30. QUESTION: Living word is _______ in size.
A. Long
B. Same
C. Enormous
D. Short
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CORRECT ANSWER IS: Enormous
31. QUESTION: The distribution of organisms in space can be studies
by
A. Space Science
B. Astronomy
C. Biomes
D. Cosmology
CORRECT ANSWER IS: Biomes
32. QUESTION: Community of an ecosystem includes
A. Biotic Factor
B. Abiotic factor
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Both a and b
33. QUESTION: The Shoots are ________ of the entire plant
A. Supporter
B. Primary organ
C. Procuring water
D. Food manufacturer
CORRECT ANSWER IS: Supporter
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34. QUESTION: The study of ____________ allow biologists to place
organisms in a time sequence
A. Anatomy
B. Fossils
C. Social Biology
D. Anatomy
CORRECT ANSWER IS: Fossils
35. QUESTION: what is the reason in decrease of population in
community
A. Fluctuation in biotic factors
B. fluctuations in abiotic factors
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Both a and b
36. QUESTION: Population of different species are living in
A. Different habits
B. Same habbits
C. Dynamic Habbits
D. None of the above
CORRECT ANSWER IS: Same Habbits
37. QUESTION: __________ is a group of living organisms of same
specie
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A. Popultion
B. Community
C. Tissue
D. None of the above
CORRECT ANSWER IS: Population
38. QUESTION: ________ are involved in producing net generation in
plants
A. Roots
B. Leaves
C. Flowers
D. Stem
CORRECT ANSWER IS: Flowers
39. QUESTION: Biodiversity is
A. The number of variety of species
B. The number of variety of Groups
C. The number of variety of communities
D. The number of variety of Population
CORRECT ANSWER IS: The number of variety of Species
40. QUESTION: how many percentage of species of fungi, algae, are
found in the world
A. 16.9 %
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B. 8.5 %
C. 4.5 %
D. 9.4 %
CORRECT ANSWER IS: 9.4 %
41. QUESTION: How many senses are included to make observation
A. 1
B. 3
C. 4
D. 5
CORRECT ANSWER IS: 5
42. QUESTION: Tentative Explanation of Observation is
A. Hypotesis
B. Results
C. Statement
D. Experiment
CORRECT ANSWER IS: Hypotesis
43. QUESTION: Imagination forms
A. Experiment
B. Observation
C. Hypothesis
D. Statement
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CORRECT ANSWER IS: Hypothesis
44. QUESTION: What type of reasoning is used to form a hypothesis
A. Inductive Reasoning
B. Deductive Reasoning
C. Both a and b
D. None of the Above
CORRECT ANSWER IS: Inductive Reasoning
45. QUESTION: Observation can be
A. Quantitative
B. Qualitative
C. Both a and b
D. None of the Above
CORRECT ANSWER IS: Both a and b
46. QUESTION: How many percent of species of insects are found in
the world
A. 19.9%
B. 16.9%
C. 10%
D. 12.4%
CORRECT ANSWER IS: 19.9%
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47. QUESTION: How many species of organisms are found in the
world
A. 4000000
B. 2500000
C. 2550000
D. 3000000
CORRECT ANSWER IS: 2500000
48. QUESTION: Science is based on __________inquiry
A. Hypothesis
B. Observation
C. Senses
D. Experimental
CORRECT ANSWER IS: Experimental
49. QUESTION: Science is ____________ knowledge
A. Experimental
B. Methodolgy
C. Systematize
D. All of them
CORRECT ANSWER IS: All of them
50. QUESTION: __________ is an unbroken series of Species
A. Phyletic Lineage
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B. Population
C. Biosphere
D. All of them
CORRECT ANSWER IS: Phyletic Lineage
51. QUESTION: _________ often produces new Species and increases
biodiversity
A. Revolutionary
B. Evolutionary
C. Environmental
D. None of Them
CORRECT ANSWER IS: Evolutionary
52. QUESTION: AIDS stands for
A. Acquired Immuno Deficiency Syndrome
B. Active Immuno Deficiency Syndrome
C. Efficient Immuno Deficiency Syndrome
D. None of Them
CORRECT ANSWER IS: Acquired Immuno Deficiency Syndrome
53. QUESTION: Hepatitis is caused by
A. Bacteria
B. HIV
C. Virus
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D. H. Virus
CORRECT ANSWER IS: H. Virus
54. QUESTION: Vacca means
A. Dog
B. Cow
C. Bull
D. Fish
CORRECT ANSWER IS: Cow
55. QUESTION: Some ___________ used as bio-pesticides.
A. Algae
B. Viruses
C. Bacteria
D. Fungi
CORRECT ANSWER IS: Bacteria
56. QUESTION: Antibiotics are useful in ___________ Diseases.
A. Viral
B. Bacterial
C. Both a and b
D. None of the Above
CORRECT ANSWER IS: Bacterial
57. QUESTION: Cancer id cured by
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A. Radiotherapy
B. Chemotherapy
C. Physiotheraphy
D. Both a and b
CORRECT ANSWER IS: Both a and b
58. QUESTION: Vaccination was developed in
A. 1775
B. 1795
C. 1785
D. 1805
CORRECT ANSWER IS: 1775
59. QUESTION: A series of _________ is called theory.
A. Experiment
B. Equations
C. Hypothesis
D. Scientific Method
CORRECT ANSWER IS: Equations
60. QUESTION: The Technique of incorporation of Foreign DNA is
called
A. Transgenic Engineering
B. Clonning
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C. Genetics
D. Genetic Engineering
CORRECT ANSWER IS: Transgenic Engineering
61. QUESTION: Which one is complex medium
A. Water
B. Soil
C. Cell wall
D. Protoplasm
CORRECT ANSWER IS: Soil
62. QUESTION: Experiment of vaccine of AIDS is conducted in
A. Animals
B. Birds
C. Sea Animals
D. Human
CORRECT ANSWER IS: Human
63. QUESTION: Production of identical copies of organisms is called
A. Special Technique
B. Clonning
C. Tissue Culture Technique
D. Culture Technique
CORRECT ANSWER IS: Clonning
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64. QUESTION: Constant or uniform fact of nature is
A. Experiment
B. Theory
C. Scientific law
D. Art
CORRECT ANSWER IS: Scientific Law
65. QUESTION: What reduce pollution of heavy metal
A. Fungi
B. Algae
C. Toxic Mterial
D. None of Them
CORRECT ANSWER IS: Fungi
66. QUESTION: Animal cannot be reproduced by
A. Clonning
B. Gene Therpy
C. Eugenic aims
D. Tissue culture Technique
CORRECT ANSWER IS: Clonning
67. QUESTION: The chemotherapy chemical may
A. Kill cancerous cells
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B. kill Normal Cell
C. Both a and b
D. None of the Above
CORRECT ANSWER IS: Both a and b
68. QUESTION: Who discovered cell?
A. Lorenz Oken
B. Schwann
C. Robert Brown
D. Robert Hook
CORRECT ANSWER IS: Robert Hook
69. QUESTION: Who discovered Nucleus?
A. Lorenz Oken
B. Schwann
C. Robert Brown
D. Robert Hook
CORRECT ANSWER IS: Robert Brown
70. QUESTION: Cell theory was put forth by
A. Lorenz Oken
B. Schwann
C. Robert Brown
D. Robert Hook
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CORRECT ANSWER IS: Schwann
71. QUESTION: Activities of life are controlled by
A. Tissue
B. Cell
C. Heart
D. Brain
CORRECT ANSWER IS: Cell
72. QUESTION: New cells are formed by
A. Automatically
B. Tissues
C. Pre-Existing Cells
D. All of them
CORRECT ANSWER IS: Pre-Existing Cells
73. QUESTION: Cell is made of
A. Nucleus
B. Cytoplasm
C. Cell Membrane
D. All of them
CORRECT ANSWER IS: All of them
74. QUESTION: Hypothesis of Virchow was supported by
A. Louis Pasteru
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B. Schwann
C. Robert Brown
D. Robert Hook
CORRECT ANSWER IS: Louis Pasteru
75. QUESTION: The abiogenesis theory postulates that living things
are formed from
A. Living things
B. Non-Living things
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Non-Living Things
76. QUESTION: ATP is essential for
A. Passive Transport
B. Active Transport
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Active Transport
77. QUESTION: Fractional Components of cell membrane is
A. Lipids
B. Protines
C. Carbohydrates
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D. All of them
CORRECT ANSWER IS: Carbohydrates
78. QUESTION: What is the percentage of lipids in Plasma Membrane
A. 100% to 120%
B. 70% to 80%
C. 20% to 40%
D. less than 10%
CORRECT ANSWER IS: 20% to 40%
79. QUESTION: Salt and water is conducted by
A. Sclerenchyma cells
B. Phloem cells
C. Xylem Cells
D. Cholenchyma cells
CORRECT ANSWER IS: Xylem Cells
80. QUESTION: Intake of solid particle by cell is termed as
A. Pinosytosis
B. Endosytosis
C. Phagosytosis
D. None of the above
CORRECT ANSWER IS: Phagosytosis
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81. QUESTION: What type of transport passes material through cell
Membrane
A. Passive Transport
B. Active Transport
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Both a and B
82. QUESTION: Which cell is responsible for the Growth of Plant
A. Sclerenchyma cells
B. Phloem cells
C. Meristematic cells
D. Cholenchyma cells
CORRECT ANSWER IS: Sclerenchyma cells
83. QUESTION: The ions which moves upward across the cells
membrane are known as
A. Passive Transport
B. Active Transport
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Active Transport
84. QUESTION: The ions which moves downward across the cells
membrane are known as
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A. Passive Transport
B. Active Transport
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Passive Transport
85. QUESTION: What is the percentage of protein in plasma
membrane?
A. 60% to 70%
B. 60% to 80%
C. 60% to 90%
D. 60% to 100%
CORRECT ANSWER IS: 60% to 80%
86. QUESTION: Which cell provide translocation of food in Plants?
A. Sclerenchyma cells
B. Phloem cells
C. Xylem Cells
D. Cholenchyma cells
CORRECT ANSWER IS: Xylem Cells
87. QUESTION: The process of photosynthesis in plan is performed in
A. Phloem cells
B. Cholenchyma cells
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C. Xylem Cells
D. Sclerenchyma Cells
CORRECT ANSWER IS: Cholenchyma cells
88. QUESTION: Support is provided by ____________ cells in plants.
A. Sclerenchyma
B. Cholenchyma
C. Phloem
D. Xylem
CORRECT ANSWER IS: Sclerenchyma
89. QUESTION: Surplus food of plant is stored in____________ cells
A. Sclerenchyma
B. Cholenchyma
C. Parenchyma
D. None of the above
CORRECT ANSWER IS: Parenchyma
90. QUESTION: Chromatin material of eukaryotic cells is present in
_______________ .
A. Cytoplasm
B. Nucleus
C. cell wall
D. Absent
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CORRECT ANSWER IS: Nucleus
91. QUESTION: Chromatin material of prokaryotic cells is present in
_______________ .
A. Cytoplasm
B. Nucleus
C. cell wall
D. Absent
CORRECT ANSWER IS: Cytoplasm
92. QUESTION: The pores of cell membrane through which material
pass are _____________.
A. Charged
B. Neutral
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Charged
93. QUESTION: Intake of material by in-folding of cell membrane is
termed as ___________
A. Phagocytosis
B. Pinocytosis
C. Endocytosis
D. None of the above
CORRECT ANSWER IS: Endocytosis
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94. QUESTION: Cell wall in animal cell is
A. Present
B. Absent
C. Partially developed
D. doubled
CORRECT ANSWER IS: Absent
95. QUESTION: Cell membrane transmit nerve impulses in _________.
A. Neuron
B. Muscle
C. Both a and b
D. None of the above
CORRECT ANSWER IS: Neuron
96. QUESTION: Intake of liquid material by cell is called ___________.
A. Phagocytosis
B. Pinocytosis
C. Endocytosis
D. None of the above
CORRECT ANSWER IS: Pinocytosis
97. QUESTION: cell wall is secreted by __________.
A. Cytoplasm
B. Protoplasm
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C. Nucleus
D. None of the above
CORRECT ANSWER IS: Protoplasm
98. QUESTION: Chitin is present in the cell wall of _________ cells.
A. Fungal
B. Eukaryotic
C. prokaryotic
D. None of the above
CORRECT ANSWER IS: Fungal
99. QUESTION: How many layers are there in cell wall?
A. 2
B. 3
C. 4
D. 5
CORRECT ANSWER IS: 3
100. QUESTION: Thickest layer of cell wall is
A. Primary wall
B. Secondary wall
C. Middle lamella
D. None of the above
CORRECT ANSWER IS: Secondary wall
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