In this article, we are going to give you the Most Useful Biology MCQs with answers, These are the Biology Mcqs that are collected from various sources such as NTS Past papers, FPSC past papers, and entrance test of medical universities. These Biology MCQs will help the students to get higher marks in biology the subject.

You can prepare for Medical Entry Test from our post of Biology MCQs with Answers.  These Biology Mcqs will help you to get higher marks especially in MCAT Biology Mcqs portion of the test.

Biology MCQs


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Biology MCQs

1. Tibia is a bone found in the ____________?

A. Skull
B. Arm
C. Leg
D. Face

2. Which is the largest gland in the human body?

A. Thyroid
B. Liver
C. Pancreas
D. None of these

3. Water has maximum density at____________?

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A. 0°C
B. 4°C
C. 4° K
D. 4.8°C

5. The scientific study of livings is called?

A. Anatomy
B. Biology
C. Geology
D. Zoology

6. The word “BIOLOGY” has been derived from_________ word?

A. Latin
B. English
C. Greek
D. French

7. According to modern system of taxonomy, living organisms have been classified into?

A. Three Kingdoms
B. Five Kingdoms
C. Two Kingdoms
D. Six Kingdoms

8. Kingdom Protoctista includes____________?

A. Fungi
B. Prokaryotes
E. protists
D. Piantae

9. 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

10. Earthworm is included in_____________?

A. Kingdom Plantae
B. Kingdom Protoctista
C. Kingdom Monera
D. Kingdom Animalia

11. 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

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12. 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

13. 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

14. The molecules of living matter that provide building blocks are mostly based on:

A. Carbon
B. Nitrogen
C. Hydrogen
D. Ammonia

15. Human blood is an example of__________?

A. Organelle
B. Tissues
C. Organic compound
D. Inorganic compounds

16. 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

17. Organelles are_______________?

A. Unicellular structures
B. Multi-cellular structures
C. Sub-cellular structures
D. Non-cellular structures

18. Functional unit of DNA Is____________?

A. Nucleus
B. Genes
C. Chromosomes
D. Nucleolus

19. Various tissue types combine to make up__________?

A. Cells
B. Organs
C. Organ System
D. Organelles

20. Two or more populations of different species living and interacting in the same area form

A. Biosphere
B. Community
C. Population System
D. Ecosystem
E. Species

21. A group of similar cells that perform a specific function is:

A. Organ
B. Tissues
C. Organelle
D. Organ System

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22. Which of the following is an example of “molecule”?

A. Chloroplast
B. A Nerve Cell
D. Hydrogen

23. A group of very similar inter breeding organisms constitutes?

A. Biosphere
B. Ecosystem
C. Population
D. Species

24. Members of one species inhabiting the same are form__________?

A. Species
B. Community
C. Ecosystem
D. Population

25. On the basis of collected facts and figures, a scientist formulates a factitive statement called:

A. Observation
B. Research work
C. Hypothesis
D. Inductive Reasoning

26. Robert Hooke discovered_____________?

A. Nucleus
B. Mitochondria
C. Cell

27. 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

28. Malaria is associated with___________?

A. Culex Mosquito
B. Culiesta Mosquito
C. Anopheles Mosquito
D. Culex & Anopheles Mosquito

29. Biologist ‘Grass’ discovered the life cycle of plasmodium in_______?

A. 1896
B. 1897
C. 1898
D. 1899

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29. The first antibiotic to be discovered was_____________?

A. Penicillin
B. Cephalosporin
C. Amino glycosides
D. Erythromycin

30. 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

31. The Science of growing terrestrial plants in an aerated solution is_________?

A. Hydrodynamics
B. Hydroponics
C. Hydrotonics
D. None of them

32. An educated guess is called:

A. Accumulated Data
B. Observation
C. Hypothesis
D. Conclusion

33. Dolly, the sheep was a highly successful clone from a somatic cell, reported back in________?

A. 1993
B. 1994
C. 1995
D. 1996

34. Crop rotation helps in______________?

A. Growth of pathogens
B. Soil Infertility
C. Slowing of crops growth
D. Eradication of disease

35. 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

36. 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

37. 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

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38. The average internal temperature of human body is __________?

A. 35 C
B. 36 C
C. 37 C
D. 38 C

39. The study of fossils is called?

A. Environmental Biology
B. Historical biology
C. Palaeontology
D. Social biology

40. About __________ of the body weight of a mammal is water ?

A. 60%
B. 65%
C. 70%
D. 75%

41. 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

42. On wound __________ fight foreign particles, like bacteria?

A. White Blood cells
B. Red Blood Cells
C. Platelets
D. Plasma

43. Synthetic insulin from pork was formed by which technique?

A. Biotechnology
B. Social biological techniques
C. Parasitology
D. Both a and c

44. Blood is carried towards the heart by __________?

A. Arteries
B. Capillaries
C. Veins
D. none of these

45. 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

46. __________ is essential for the formation of hemoglobin.

A. Calcium
B. Iron
C. Water
D. Carbohydrates

47. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

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A. 6
B. 16
C. 26
D. 15

48. ___________ are needed as a source of energy for the vital activities of the body?

A. Calcium
B. Iron
C. Water
D. Carbohydrates

49. Oxygen accounts for ____ % of totals human body mass?

A. 65%
B. 18%
C. 10%
D. 3%

50. 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

51. Which one of them is a micro-molecule?

A. Polysaccharide
B. Protein
C. Hemoglobin

52. 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

53. Haemodialysis means cleaning of____________?

A. Urine
B. Blood
C. Glomerular filterate
D. Coelomic fluid

54. In animal coordination is achieved by means of?

A. Nervous system
B. Endocrine system
C. Respiratory system
D. Both A and B

55. Production of sweat and sebum is related with?

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A. Skin
B. Liver
C. Lungs

56. 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

57. The evaporative cooling in the respiratory tract of dogs is called?

A. Vasodilation
B. Vasoconstriction
C. Panting
D. All of these

58. Different species of plants and animals living in the same habitat is called?

A. Population
B. Community
C. Biome
D. Habitat

59. Which of the following pathogen type cause disease that can be treated with antibiotics?

A. bacteria
B. fungi
C. virus
D. none of these

60. A large regional community primarily determined by climate is called?

A. Population
B. Community
C. Biome
D. Habitat

61. Most cell membranes are composed principally of?

A. DNA ad protein
B. Protein and Lipids
C. Protein and Chitin
D. Protein and RNA

62. 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

63. 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

64. 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

65. 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

66. 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

67. Proteins are made from amino acids by the process of ______________?

A. Hydrolysis
B. Pinocytosis
C. Dehydration synthesis
D. Active transport

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68. Biological sciences have a set methodology and it is based on?

A. Experimental inquiry
B. Esthetic preference
C. Philosophical ideas
D. Imaginations

69. Which is an organic compound found in most cells?

A. Water
B. Glucose
C. Oxygen
D. Sodium chloride

70. A series of hypothesis supported by the results of many tests is called?

A. Scientific law
B. Theory
C. Data
D. Deduction

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These Biology MCQs are helpful for the preparation of basic biology MCQs, biology MCQs for FPSC test, MCQs of biology 1st year, biology MCQs for class 9, and biology MCQs for class 10.

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