Biology 100 Questions

 

1. Carolus Linnaeus developed the system of nomenclature which is called:
  • Binomial
  • Trinomial
  • Naming and classification
  • Monomial

2. The means by which recombinant DNA is introduced in a host cell is called:
  • Carrier
  • Transmitter
  • Scalar
  • Vector

3. Archaeopteryx is a fossil of:
  • Mammal
  • Amphibian
  • Bird
  • Reptile

4. Lysosomes also releases enzymes for extra cellular:
  • Secretion
  • Contraction
  • Development
  • Digestion

5. The main cause of extinction of species include:
  • Invasions from foreign species
  • Climate change
  • Pollution
  • All of above

6. The sedimentation coefficient of prokaryotic ribosome is:
  • 70s
  • 50s
  • 30s
  • 80s

7. Pigs could be reservoirs to:
  • Hepatitis E
  • Hepatitis A
  • Hepatitis C
  • Hepatitis B

8. A pollutant which causes mental illness is:
  • Tin
  • Lead
  • Helium
  • Mercury

9. The elimination of wasteful metabolites mainly of nitrogenous nature is called as:
  • Excretophore
  • Excretion
  • Egestion
  • All of above

10. Which cells do not respire?
  • None of these
  • Cork cells
  • Epithelial cells
  • Mesodermal cells

11. Edward Jenner first developed the technique of vaccination in:
  • 1775
  • 1725
  • 1895
  • 1795

12. The first step of aerobic respiration is:
  • Glycolysis
  • Citric acid cycle
  • Electron transport chain
  • Phosphorylation

13. Evolutionary change often produces new species and then increases:
  • Population
  • Biodiversity
  • Population and Pollution
  • Pollution

14. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:
  • Coordinator
  • Impulse
  • Effector
  • Regulator

15. The entire cell wall of prokaryotic cell is often regarded as a single huge molecule known as:
  • Polysaccharide
  • Murein Sacculus
  • Cellulose
  • Lipoprotein

16. Which animals show no inter relationship (i.e.,neutralism)?
  • Cow and snake
  • Mosquito and lizard
  • Lizard and cockroach
  • Sparrow and worm

17. The crossing of different varieties of plants or even species is called:
  • Blending
  • Mixing
  • Crossing over
  • Hybridization

18. The oldest known fossils are:
  • Dipnoi
  • Bacteria
  • Archaeopteryx
  • Prokaryotes

19. A pollutant which causes mental illness is:
  • Mercury
  • Helium
  • Lead
  • Tin

20. The list of plants and animals which if not protected would soon be extinct is known as:
  • Dangerous species
  • Endangered species
  • Protected species
  • Stress species

21. Polioviruses are:
  • Filamentous
  • Spherical
  • Rod-shaped
  • Vesicular

22. Uric acid is produced from the breakdown of:
  • Fatty acids
  • Amino acids
  • Nitric acids
  • Nucleic acids

23. Biology is the study of:
  • Living things
  • Marine life
  • Non-living things
  • Animals and plants

24. Perhaps the most distinctive feature of prokaryotic cell is its:
  • Ribosomes
  • Hereditary material
  • Cell membrane
  • Cell wall

25. Temperature phage may exist as:
  • Prophage
  • Viroid
  • Capsid
  • Retrovirus

26. The study of viruses is called as:
  • Virology
  • Mycology
  • Ecology
  • Phycology

27. The asexual reproduction in sponges is by:
  • All of above
  • Fragmentation
  • Fission
  • Budding

28. The whole metabolism of the cell is controlled by the proteinaceous agents called:
  • Co-enzymes
  • Hormones
  • Enzymes
  • Vitamins

29. There is a need for lead free petrol to reduce the:
  • Tension and Pollution
  • Economical losses
  • Tension
  • Pollution

30. Extinction of a species in a food chain is compensated by:
  • None of these
  • Ecological pyramids
  • Food series
  • Food web

31. The body of birds is covered by:
  • Scales
  • Splines
  • Hair
  • Feathers

32. The gizzard is used for crushing food in:
  • Frogs
  • Repyiles
  • Birds
  • Fishes

33. Photosynthesis consists of two well-defined phases, which are:
  • Biochemical phase and cellular phase
  • Oxygenated phase and deoxygenated phase
  • Light phase and dark phase
  • Chemical phase and photochemical phase

34. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors, control centre and:
  • Impulse
  • Regulator
  • Coordinator
  • Effector

35. New ribosomes are assembled in the:
  • Nucleus
  • Nucleolus
  • Cytoplasm
  • Endoplasmic reticulum

36. The study of life in seas and oceans comes under the heading of:
  • Ocean biology
  • Freshwater biology
  • Marine biology
  • Sea biology

37. Contraction and relaxation are the characteristics of:
  • Nerve cells
  • Gland cells
  • Tendons
  • Muscle cells

38. Retroviruses cause the disease:
  • Sleeping sickness
  • Malaria
  • Mumps and measles
  • AIDS

39. Science is a systematized knowledge and based on:
  • Philosophical approach
  • Hypothesis
  • Experimental inquiry
  • Judicial inquiry

40. Soyabeans have been made resistant to a common:
  • Pesticide
  • Herbicide
  • Fungicide
  • Insecticide

41. Name the first microbe to have the genome completely sequenced:
  • Pelomyxa palustris
  • Entamoeba Histolytica
  • Haemophilus influenza
  • Hyphomicrobium influenza

42. In 1997, scientists in Scotland succeeded in cloning a:
  • Buffalo
  • Sheep
  • Dog
  • Mouse

43. The cell was discovered by:
  • Lorenz Oken
  • Robert Brown
  • Robert Hooke
  • Lamarck

44. Which is the best source of renewable energy?
  • Cattle
  • Petroleum
  • Trees (Biomass)
  • Coal

45. Retroviruses cause the disease:
  • Mumps and measles
  • AIDS
  • Sleeping sickness
  • Malaria

46. Nearly 70% of the total global carbon is found in:
  • Oceans
  • Grasslands
  • Forests
  • Forests and Grasslands

47. Which is the last electron receptor in respiration?
  • H₂O
  • H₂
  • CO₂
  • O₂

48. Endangered species of plants have been recorded to more than:
  • 2500
  • 500
  • 300
  • 1500

49. In electron microscope the resolution of microscope ranges between ________.
  • 2-4 Angstrom
  • 3-6 Angstrom
  • 1-4 Angstrom
  • 2-6 Angstrom

50. The prokaryotic cell can divided by:
  • Multiple fission
  • Binary fission
  • Mitosis
  • Meiosis

51. Homeostasis is the central requirement in the maintenance of:
  • Ecosystem
  • Species
  • Organism
  • All of above

52. The five kingdom system of classification was proposed by:
  • Robert Brown
  • Robert Whittaker
  • Undertaker
  • Margulis and Schwartz

53. A branch of Biology, which deals with the study of chemical components  and chemical process in living organisms is known as:
  • Molecular biology
  • Biochemistry
  • Biomedical
  • Biometry

54. A class is a group of related:
  • Family
  • Order
  • Species
  • Genera

55. Succession begins by a few hardy invaders called:
  • Openers
  • Pioneers
  • Leaders
  • Successors

56. Major unit of ecology is:
  • Ecosystem
  • Community
  • Biosphere
  • Population

57. Dark reaction is also called as:
  • Uphill reaction
  • Hoffmann reaction
  • Blackman reaction
  • Hill reaction

58. It is very difficult to define:
  • Biology
  • Life
  • Embryology
  • Pasteurization

59. Lamarck published his theory of evolution in:
  • 1809
  • 1812
  • 1822
  • 1817

60. The protection of internal environment from the harms of fluctuations in external environment is called as:
  • Homeostasis
  • Thermoregulation
  • Osmoregulation
  • Excretion

61. Plants use evaporative cooling to manage with high:
  • Temperature
  • Water stress
  • Wind pressure
  • Rainfall

62. The nucleoside forms a nucleotide after combining with a:
  • None of above
  • Base
  • Pentose sugar
  • Phosphoric acid

63. What is the number of insects in percentage among known species of organisms:
  • 17.6%
  • 53.1%
  • 19.9%
  • 63.1%

64. Actual place or location where an organism lives is called its:
  • Terrain
  • Niche
  • Habitat
  • Domain

65. Nucleohistones are present in:
  • Chromosomes
  • Ribosomes
  • Nucleolus
  • DNA

66. The animal excreting urea as the nitrogenous waste are called as:
  • Ammonotelic
  • Uretolic
  • Excretophores
  • Uricotelic

67. Quantum yield of photosynthesis is:
  • 74%
  • 33%
  • 12%
  • 22%

68. Kingdom Animalia includes all animals which are:
  • Multicellular
  • Diploid
  • Eukaryoti
  • All of above

69. Science is a systematized knowledge and based on:
  • Hypothesis
  • Experimental inquiry
  • Philosophical approach
  • Judicial inquiry

70. Photosynthesis is:
  • A catabolic process
  • A metabolic process
  • None of these
  • An anabolic process

71. Currently, the number of species of organisms, known to science is:
  • 1.5 million
  • 2,500,00
  • 3.5 million
  • 2.5 million

72. Eukaryotes include animals, plants, fungi and:
  • Monera
  • Bacteria
  • Viruses
  • Protista

73. Driving force of ecosystem is:
  • Water
  • Green plants
  • All of these
  • Solar energy

74. A very useful method of DNA finger printing is:
  • Transformation
  • Cloning
  • Genetic engineering
  • PCR

75. Succession begins by a few hardy invaders called:
  • Pioneers
  • Successors
  • Leaders
  • Openers

76. Meristem is a:
  • Bacteria free region
  • Fungus free region
  • Virus free region
  • Pathogen free region

77. In Ecuador, factor coverage has been reduced by:
  • 85%
  • 44%
  • 60%
  • 95%

78. The cell theory was formulated by:
  • Schleiden and Weismann
  • Pasteur and Schwann
  • Schleiden and Schwann
  • Schleiden and Shan

79. Two different molecules, belonging to different categories, usually combine together to form:
  • Resonance molecules
  • Conjugated molecules
  • Macromolecules
  • Hybrid molecules

80. Plants use evaporative cooling to manage with high:
  • Rainfall
  • Wind pressure
  • Water stress
  • Temperature

81. Fungal cell wall is made up of:
  • Cutin
  • Chitin
  • Pectin
  • Cellulose

82. In humans, thermostat responds to changes in temperature above and below a set point which is:
  • 37°C
  • 40°C
  • 98°C
  • 38°C

83. The study of microorganisms which include bacteria, viruses, protozoa and microscopic algae and fungi comes under:
  • Microbiology
  • Molecular biology
  • Bacteriology
  • Virology

84. The name animalia is derived from Latin, anima which means:
  • Breath and Soul
  • Life
  • Soul
  • Breath

85. Urine is preferably used as a vehicle for biotechnology product than:
  • Milk
  • Plasma
  • Tissue fluid
  • Blood

86. Polioviruses are:
  • Filamentous
  • Rod-shaped
  • Vesicular
  • Spherical

87. About three billion base pairs are present in the genome of a:
  • Horse
  • Monkey
  • Man
  • Dog

88. Photosynthetically, least effective radiation is:
  • Red
  • Blue
  • Yellow
  • Green

89. There is a need for lead free petrol to reduce the:
  • Pollution
  • Tension and Pollution
  • Economical losses
  • Tension

90. The transfer of energy from one trophic level to another is called as:
  • Food chain
  • Food pyramid
  • Food net
  • Food web

91. Most fossils are found in:
  • Modern rocks
  • Sedimentary rocks
  • All of above
  • Ignitious rocks

92. The regulation of amount of water and solutes in the body is termed as:
  • Thermoregulation
  • Homeostasis
  • All of above
  • Osmoregulation

93. It is the beautiful and delicate sponge made up of glass frame work:
  • Leucoselenia
  • Spongilla
  • Sycon
  • Euplectella

94. Algae have been found to reduce pollution of heavy metals by:
  • Bioabsorption
  • Biomagnification
  • Bioremediation
  • Bioeradication

95. Species is the basic unit of:
  • Evolution
  • Ecology
  • Genetics
  • Classification

96. A basic knowledge of Biochemistry is essential for understanding:
  • Anatomy and Physiology
  • Cytology and Anatomy
  • Anatomy and Histology
  • Physiology and Cytology

97. A virion is a:
  • Viral protein
  • Viral gene
  • Viral enzyme
  • Virus

98. Darwin published “The origin of Species” in:
  • 1840
  • 1859
  • 1844
  • 1858

99. In the coming years, skin = related disorders will be more common due to:
  • Greenhouse effect
  • All above
  • Depletion of ozone layer
  • Global warming

100. The study of viruses is called as:
  • Virology
  • Mycology
  • Phycology
  • Ecology

 

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