NTS Biology MCQs With Answers

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NTS-National Testing System Pakistan is a non-governmental organization which conducts written and screening tests for admission, scholarship, internship, recruitment, promotion and jobs.

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NTS Biology MCQs With Answers Online Solved

 

1. The scientific study of livings is called?
A. Anatomy
B. Biology
C. Geology
D. Zoology

2. The word “BIOLOGY” has been derived from_________ word?
A. Latin
B. English
C. Greek
D. French
3. According to modern system of taxonomy, living organisms have been classified into?
A. Three Kingdoms
B. Five Kingdoms
C. Two Kingdoms
D. Six Kingdoms
4. Kingdom Protoctista includes____________?
A. Fungi
B. Prokaryotes
C. protists
D. Piantae
5. Kingdom Fungi includes_______________?
A. A cellular, eukaryotic organisms
B. Non-chlorophylls, multicellular eukaiyotlc organisms
C. Non-chlorophylls, multioellular,thailophytic organisms
D. Chlorophyllus, multicellular, eukaryotic Organisms
6. Earthworm is included in_____________?
A. Kingdom Plantae
B. Kingdom Protoctista
C. Kingdom Monera
D. Kingdom Animalia
7. The Study of organisms inhabiting the sea and Ocean and the physical and chemical characteristics of their environment is:
A. Social Biology
B. Marine Biology
C. Environmental Biology
D. Fresh Water Biology
8. The branch of Biology which deals with the use of data and techniques of engineering & technology concerning living organisms is:
A. Human Biology
B. Environmental Biology
C. Genetics
D. Bio-technology
9. The branch in which organism’s life cycle, mode of transmission and interaction with their hosts are studied is:
A. Anatomy
B. Physiology
C. Parasitology
D. Social Biology
10. The molecules of living matter that provide building blocks are mostly based on:
A. Carbon
B. Nitrogen
C. Hydrogen
D. Ammonia
11. Severe deficiency of Vitamin-D results in __________.
A. scurvy
B. rickets
C. night blindness
D. osteomalacia
12. People living in high altitudes (like mountains) usually have a _________.
A. smaller number of Red Blood Cells
B. larger number of Red Blood Cells
C. smaller number of White Blood Cells
D. larger number of White Blood Cells
13. The average adult has a blood volume of about __________ liters.
A. 5
B. 5.5
C. 6
D. 6.5
14. The average internal temperature of human body is __________.
A. 35 oC
B. 36 oC
C. 37 oC
D. 38 oC
15. Vitamin __________ is needed for the formation of a light-sensitive pigment in the retina.
A. A
B. C
C. D
D. B complex
16. About __________ of the body weight of a mammal is water.
A. 60%
B. 65%
C. 70%
D. 75%
17. On wound __________ fight foreign particles, like bacteria.
A. White Blood cells
B. Red Blood Cells
C. Platelets
D. Plasma
18. Blood is carried towards the heart by __________.
A. Arteries
B. Capillaries
C. Veins
D. none of these
19. __________ is essential for the formation of haemoglobin.
A. Calcium
B. Iron
C. Water
D. Carbohydrates
20. ___________ are needed as a source of energy for the vital activities of the body.
A. Calcium
B. Iron
C. Water
D. Carbohydrates
21. What is the main purpose of white blood corpuscles
A. To carry nutrients
B. To combat infection
C. To carry oxygen
D. To give strength
22. Total volume of blood in human being is
A. 5-6 litres
B. 3-4 litres
C. 8-10 litres
D. 10-12 litres
23. Red blood corpuscles are formed in the
A. Liver
B. Bone Marrow
C. Kidneys
D. Heart
24. Blood does not coagulate inside the body due to the presence of
A. Haemoglobin
B. Heparin
C. Fibrin
D. Plasma
25. The number of bones in the human body of an adult is approximately
A. 210
B. 250
C. 206
D. 80
26. Lungs are situated in the
A. Abdominal cavity
B. Pericardinal cavity
C. Buccal cavity
D. Thoracic cavity
27. The pancreas secretes
A. Insulin
B. Vitamin A
C. Bile juice
D. None of these
28. The seat of memory in human brain is located in the
A. Medulla oblongata
B. Cerebrum
C. Cortex
D. Cerebellum
29. Tibia is bone found in the
A. Skull
B. Arm
C. Leg
D. Face
30. The strongest muscle in human body is found in
A. Hands
B. Buttocks
C. Neck
D. Lungs

31. The main function of the kidney is
A. To control blood pressure
B. To control body temperature
C. To remove waste products from the body
D. To help in digestion of food

32. A gene is a
A. Sleep inducing drug
B. Unit of heredity
C. A kind of vitamin
D. A type of body cell
33. The function of haemoglobin is
A. To transport oxygen
B. Destruction of bacteria
C. Prevention of anaemia
D. Utilization of energy
34. A vegetable containing sulphur is?
A. Potato
B. Cabbage
C. Brinjal
D. Pumpkin
35. Enzymes help in
A. Respiration
B. Digestion of food
C. Immune system
D. Reproduction
36. Ptyalin is an enzyme produced in the
A. Salivary glands
B. Pituitary glands
C. Thyroid glands
D. Pancreas
37. Heightened emotion is caused by
A. Pituitary glands
B. Thyroid glands
C. Adrenal glands
D. Salivary glands
38. The shortest bone in the human body is
A. Vertebrae
B. Phalanges
C. Stapes
D. Metacarpals
39. Lack of ____ causes diabetes
A. Sugar
B. Insulin
C. Calcium
D. Vitamins
40. Biopsy is done on
A. Tissues taken from a dead body
B. Tissues taken from a living body
C. Blood from Veins
D. Blood from Arteries
41. . Haemodialysis means cleaning of
A. urine
B. blood
C. glomerular filterate
D. coelomic fluid
42. Production of sweat and sebum is related with
A. skin
B. liver
C. lungs
D. GIT
43. The evaporative cooling in the respiratory tract of dogs is called
A. vasodilation
B. vasoconstriction
C. panting
D. all of these
44. Which of the following pathogen type cause disease that can be treated with antibiotics
A. bacteria
B. fungi
C. virus
D. none of these
45. Most cell membranes are composed principally of
A. DNA ad protein
B. protein and lipids
C. protein and chitin
D. protein and RNA
46. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the
A. concentration of water molecules inside and outside the cell
B. concentration of enzymes on either side of the cell membrane
C. rate of molecular motion on either side of the cell membrane
D. none of these
47. Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
A. diffusion
B. passive transport
C. osmosis
D. active transport
48. Proteins are made from amino acids by the process of
A. hydrolysis
B. pinocytosis
C. dehydration synthesis
D. active transport
49. Which is an organic compound found in most cells
A. water
B. glucose
C. oxygen
D. sodium chloride
50. Which are the four most abundant elements in living cells
A. carbon, oxygen, nitrogen, sulfur
B. carbon, oxygen, hydrogen, nitrogen
C. carbon, oxygen, sulfur, phosphorus
D. carbon, sulfur, hydrogen, magnesium

51. Human blood is an example of__________?
A. Organelle
B. Tissues
C. Organic compound
D. Inorganic compounds

52. With different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ?
A. Cells
B. Tissues
C. Organs
D. Organ System

53. Organelles are_______________?
A. Unicellular structures
B. Multi-cellular structures
C. Sub-cellular structures
D. Non-cellular structures
54. Functional unit of DNA Is____________?
A. Nucleus
B. Genes
C. Chromosomes
D. Nucleolus
55. Various tissue types combine to make up__________?
A. Cells
B. Organs
C. Organ System
D. Organelles
56. Two or more populations of different species living and interacting in the same area form
A. Biosphere
B. Community
C. Population System
D. Ecosystem
57. A group of similar cells that perform a specific function is:
A. Organ
B. Tissues
C. Organelle
D. Organ System
58. Which of the following is an example of “molecule”?
A. Chloroplast
B. A Nerve Cell
C. DNA
D. Hydrogen
59. A group of very similar inter breeding organisms constitutes?
A. Biosphere
B. Ecosystem
C. Population
D. Species
60. Members of one species inhabiting the same are form_________?
A. Species
B. Community
C. Ecosystem
D. Population
61. Robert Hooke discovered_____________?
A. Nucleus
B. Mitochondria
C. Cell
D. DNA
62. Steps Involved in scientific method are ?
A. Hypothesis –>Accumulated data –> observation & experimentation –> conclusion
B. New data —> Conclusion —> Accumulated data —> Observation & experimentation
C. Accumulated data – New data – Observation & experimentation – Hypothesis –> Conclusion
D. Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion
63. Malaria is associated with___________?
A. Culex Mosquito
B. Culiesta Mosquito
C. Anopheles Mosquito
D. Culex & Anopheles Mosquito
64. Biologist ‘Grass’ discovered the life cycle of plasmodium in_______?
A. 1896
B. 1897
C. 1898
D. 1899
65. The first antibiotic to be discovered was_____________?
A. Penicillin
B. Cephalosporin
C. Amino glycosides
D. Erythromycin
66. Immunization by vaccination was first introduced by?
A. Fleming in 1945
B. Florey & Chain in 1975
C. Flore & Chain in 1795
D. Edward Jenner in 1795
67. The science of growing terrestrial plants in an aerated solution is_________?
A. Hydrodynamics
B. Hydroponics
C. Hydroponics
D. None of them
68. An educated guess is called:
A. Accumulated Data
B. Observation
C. Hypothesis
D. Conclusion
69. Dolly, the sheep was a highly successful clone from a somatic cell, reported back in________?
A. 1993
B. 1994
C. 1995
D. 1996
70. Crop rotation helps in______________?
A. Growth of pathogens
B. Soil Infertility
C. Slowing of crops growth
D. Eradication of disease
71. People living in high altitudes (like mountains) usually have a _________?
A. smaller number of Red Blood Cells
B. larger number of Red Blood Cells
C. smaller number of White Blood Cells
D. larger number of White Blood Cells
72. Which character differentiates living things from non-living organisms?
A. They live in the same ecosystem.
B. They are highly organized and complex made of one or more cells and contain genetic material
C. They are acted upon by the same environment
D. Both a and b
73. Which Vitamin is needed for the formation of a light-sensitive pigment in the retina.
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. B complex
74. The average internal temperature of human body is __________?
A. 35 oC
B. 36 oC
C. 37 oC
D. 38 oC
75. The study of fossils is called?
A. Environmental Biology
B. Historical biology
C. Palaeontology
D. Social biology
76. About __________ of the body weight of a mammal is water ?
A. 60%
B. 65%
C. 70%
D. 75%
77. The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist
78. On wound __________ fight foreign particles, like bacteria?
A. White Blood cells
B. Red Blood Cells
C. Platelets
D. Plasma
79. Sythetic insulin from pork was formed by which technique?
A. Biotechnology
B. Social biological techniques
C. Parasitology
D. Both a and c
80. Blood is carried towards the heart by __________?
A. Arteries
B. Capillaries
C. Veins
D. none of these
81. The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?
A. Environmental biology
B. Social biology
C. Human biology
D. Both b and c
82. __________ is essential for the formation of hemoglobin.
A. Calcium
B. Iron
C. Water
D. Carbohydrates
83. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
A. 6
B. 16
C. 26
D. 15
84. ___________ are needed as a source of energy for the vital activities of the body?
A. Calcium
B. Iron
C. Water
D. Carbohydrates
85. Oxygen accounts for ____ % of totals human body mass?
A. 65%
B. 18%
C. 10%
D. 3%
86. The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:
A. An organ
B. A molecule
C. Tissue
D. Both a and c
87. Which one of them is a micro-molecule?
A. Polysaccharide
B. Protein
C. Hemoglobin
D. ATP
88. A structure formed by groups of similar cells organized into loose sheets or bundles performing similar functions is called as:
A. An organ
B. An organism
C. A Tissue
D. A Cell
89. Haemodialysis means cleaning of____________?
A. Urine
B. Blood
C. Glomerular filterate
D. Coelomic fluid
90. In animals coordination is achieved by means of?
A. Nervous system
B. Endocrine system
C. Respiratory system
D. Both A and B
91. Production of sweat and sebum is related with ?
A. Skin
B. Liver
C. Lungs
D. GIT
92. Group of living organisms of the same species living in the same place at the same time is called ?
A. Community
B. Population
C. Ecosystem
D. Biome
93. The evaporative cooling in the respiratory tract of dogs is called?
A. Vasodilation
B. Vasoconstriction
C. Panting
D. All of these
94. Different species of plants and animals living in the same habitat is called?
A. Population
B. Community
C. Biome
D. Habitat
95. Which of the following pathogen type cause disease that can be treated with antibiotics ?
A. bacteria
B. fungi
C. virus
D. none of these
96. A large regional community primarily determined by climate is called ?
A. Population
B. Community
C. Biome
D. Habitat
97. Most cell membranes are composed principally of ?
A. DNA ad protein
B. Protein and Lipids
C. Protein and Chitin
D. Protein and RNA
98. The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by ?
A. Environmental biologist
B. Paleontologist
C. Marine biologist
D. Social biologist
99. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?
A. Concentration of water molecules inside and outside the cell
B. Concentration of enzymes on either side of the cell membrane
C. Rate of molecular motion on either side of the cell membrane
D. None of these
100. It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?
A. Older sediment layers have equal amount of these radioactive isotopes as that of the young ones
B. Older sediment layers have less amount of these radioactive isotopes as that of the young ones.
C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.
D. Older sediment layers did not have these radioactive isotopes
101. Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
A. Diffusion
B. Passive transport
C. Osmosis
D. Active transport
102. An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called?
A. Biome
B. Phyletic lineage
C. Community
D. Population
103. Proteins are made from amino acids by the process of ______________?
A. Hydrolysis
B. Pinocytosis
C. Dehydration synthesis
D. Active transport
104. Biological sciences have a set methodology and it is based on ?
A. Experimental inquiry
B. Esthetic preference
C. Philosophical ideas
D. Imaginations
105. Which is an organic compound found in most cells ?
A. Water
B. Glucose
C. Oxygen
D. Sodium chloride
106. A series of hypothesis supported by the results of many tests is called ?
A. Scientific law
B. Theory
C. Data
D. Deduction
107. Which are the four most abundant elements in living cells ?
A. carbon, oxygen, nitrogen, sulfur
B. carbon, oxygen, hydrogen, nitrogen
C. carbon, oxygen, sulfur, phosphorus
D. carbon, sulfur, hydrogen, magnesium
108. Which one is not correct for a productive theory?
A. It is predictive
B. It has explanatory power
C. It discourages suggestion of different hypotheses
D. None of these
109. Conclusion of Mendels work latter became a_____________?
A. Scientific hypothesis
B. Theory
C. Scientific law
D. Productive theory
110. Starch is converted into maltose by?
A. diastase
B. invertase
C. maltase
D. amylase
111. Breeders have developed new and better varieties of food items by using which technique?
A. Pasteurization
B. Hydroponic culture technique
C. Genetic engineering
D. Biological control techniques
112. Co-enzyme is often formed from ?
A. lipid
B. protein
C. inorganic ion
D. vitamin
113. Production of genetically identical copies of organisms/cells by asexula reproduction is called ?
A. Mitosis
B. Replication
C. Cloning
D. Biological control
114. Messenger RNA is formed in_________?
A.nucleus
B.chloroplast
C.mitochondria
D.none of these
115. Astronauts may use which technique to grow fruits and vegetables ?
A. Tissue culture techniques
B. Cloning
C. Pasterisation
D. Hydroponic culture technique
116. Number of chromosomes in E.coli ?
A. 1
B. 2
C. 4
D. 6
117. Which statement is incorrect for pasteurization?
A. It is used to preserve yogurt and milk
B. It was developed by Louis Pasteur.
C. It involves heating the substance at high temperature for just few sec.
D. It can be used to preserve vegetables and meat.
118. Protein factory is___________?
A. nucleus
B. ribosome
C. golgi complex
D. centriole
119. What is the mode of transmission of Hepatitis virus?
A. Aerosol
B. Parentral (via blood)
C. Skin penetration
D. Unknown
120. Smallest disease causing agents in plants are ?
A. virion
B. mycoplasma
C. viroids
D. prions
121. Which disease can be controlled by vaccination?
A. Measles
B. Cancer
C. Diabetes
D. Heart attack
122. The major cell infected by the HIV is lymphocyte ?
A. helper-T
B. B
C. both T and B
D. none of these
123. Vaccine was first developed by_______________?
A. Louis Pasture
B. Edward Jenner
C. Jaber Ibn Hayan
D. Aristotle
124. Pigment present in red algae is_____________?
A. fucoxanthin
B. phycocyanin
C. phycoerythrin
D. bilirubin
125. Which disease has been totally eradicated from the world because of effective vaccination?
A. Measles
B. Polio
C. Small pox
D. Hepatitis
126. Nutrition in fungi is___________?
A. Photosynthetic
B. Chemosynthetic
C. Completely parasitic
D. Absorptive heterotrophs
127. Which of the following statement is incorrect about antibiotics?
A. They are used against microorganisms
B. They are always effective against bacteria
C. They are used in diseases like tuberculosis and pneumonia
D. They are derived from bacteria only
128. Fungi resemble plants because they lack___________?
A. Cell wall
B. Cytoplasm
C. Centriole
D. Nucleus
129. Which treatment is instituted in a cancerous patient?
A. Antibiotic therapy
B. Radiotherapy
C. Gene therapy
D. None of these
130. Which is a parasitic plant?
A. cuscuta
B. rose
C. ferns
D. mosses
131. Which statement is incorrect for cloning?
A. The nucleus of a fertilized egg is replaced by the nucleus from the cell of a fully developed individual
B. Division of a single egg into one or more separate embryos.
C. The individual is the mirror image of the parent organism
D. It involve methods of sexual reproduction
132. True roots absent in_____________?
A. ferns
B. bryophytes
C. gymnosperms
D. angiosperms
133. Removal or degradation of environmental pollutants or toxic materials by living organisms is called__________?
A. Integrated disease management
B. Hydroponic culture technique
C. Pasteurization
D. Bioremediation
134. The mechanism for ATP synthesis is_____________?
A. Chemosynthesis
B. Photosynthesis
C. Phosphorylation
D. Chemiosmosis
135. Which of the following is not a viral disease?
A. Cowpox
B. Mumps
C. Tetanus
D. Small pox
136. Enzyme present in the saliva is_____________?
A. lipase
B. trypsin
C. ptyalin
D. invertase
137. In human body 99% of total mass is formed of_____________?
A. 16 Bio-elements
B. 12 Bio-elements
C. 10 Bio-elements
D. 6 Bio-elements
138. Nitrogen is present in___________?
A. carbohydrates
B. proteins
C. lipids
D. carbonates
139. Biological organization is_____________?
A. simple
B. advance
C. complex
D. highly complex
140. Operculum is present in_____________?
A. bony fish
B. sea fish
C. cartilaginous fish
D. none of these
141. The arrangement of ________ speaks of the division of labour within cell?
A. Molecule
B. Subatomic particles
C. Atoms
D. Organelles
142. In which animal respiratory surface are found in more than one organ?
A. birds
B. human
C. fish
D. frog
143. Communities are ________ collection of organisms?
A. Static
B. Dynamic
C. May be static or dynamic
D. None of these
144. The heart is enclosed in a membrane called________?
A. pleura
B. pericardium
C. peritoneum
D. epithelium
145. The number of species of organisms currently known to science is?
A. 3500000
B. 35000
C. 2500000
D. 25000000
146. From right ventricle blood is pushed into?
A. pulmonary trunk
B. brain
C. aorta
D. body
147. What is the branch of biology in which structure and function of tissues are studied___________?
A. Cell Biology
B. Taxonomy
C. Histology
D. Morphology
148. Biometry is the application of_______ in biology.
A. Algebra
B. Statistics
C. Matrix
D. Geometry
149. Study of insects is called_________?
A. Immunology
B. Parasitology
C. Entomology
D. Paleontology
150. The term biology was introduced in__________ in 1800?
A. Germany
B. Turkey
C. Italy
D. Japan
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