NEET Biology Multiple Choice Questions – The Living World

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NEET Biology The Living World Multiple Choice Questions

Question 1. The total of all living and non-living things on the earth constitutes:

  1. Organism
  2. Organ system
  3. Community
  4. Biosphere

Answer: 4. Biosphere

Question 2. Which of the following regulates the organization at different levels?

  1. Aggregation
  2. Interaction
  3. Equilibrium and change
  4. All of these.

Answer: 4. All of these.

Question 3. The living beings can utilize only:

  1. Heat energy
  2. Free energy
  3. Light energy
  4. Mechanical energy.

Answer: 2. Free energy

Question 4. Biolumincsccncc in glowworm (firefly) is on account of the transformation of cellular energy ATP into:

  1. Heat energy
  2. Light energy
  3. Electric energy
  4. None of the above.

Answer: 2. Light energy

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Question 5. Energy in a state of randomness or disorder is known as:

  1. Free energy
  2. Heat energy
  3. Light energy
  4. Entropy.

Answer: 4. Entropy.

The Living World MCQs For NEET

Question 6. Which of the explanations accounts for the statement that “still we have not been able to create life.” ?

  1. All molecules of life have not been found.
  2. The nature of the molecular organization is complex and not completely understood.
  3. Life molecules except a few are known.
  4. None of the above.

Answer: 2. The nature of the molecular organization is complex and not completely understood.

Question 7. The life span of a parrot is:

  1. 200 Years
  2. 20 Years
  3. 70 Years
  4. 140 Years

Answer: 4. 140 Years

Question 8. Resurrection plant is:

  1. Pinus
  2. Eucalyptus
  3. Selaginella lepidopliylla
  4. Dryopteris.

Answer: 3. Selaginella lepidopliylla

Question 9. Homeostasis is represented by:

  1. Intake of more salt during summer
  2. Intake of more fat during winter
  3. Provide energy to cells
  4. Sweating during exercise.

Answer: 4. Sweating during exercise.

The Living World MCQs For NEET

Question 10. Homeostasis is:

  1. Tendency to resist change
  2. Disturbance in regulatory control systems
  3. Tendency to change with change in environment
  4. Use of extracts of living organisms in homeopathy.

Answer: 1. Tendency to resist change

Question 11. Which of the following has the longest life span?

  1. Elephant
  2. Parrot
  3. Tortoise
  4. Horse.

Answer: 3. Tortoise

Question 12. Viruses are:

  1. Living cellular organisms
  2. Non-living entities
  3. Living inside the host cells
  4. None of the above.

Answer: 3. Living inside the host cells

Question 13. You have observed that organisms die. Which of the following statements appear to you as scientifically sound?

  1. An organism dies because all its cells die.
  2. Because an organism can be bom again.
  3. Death is a natural part of the life cycle.
  4. Otherwise, the earth will become too crowded.

Answer: 3. Death is a natural part of the life cycle.

Question 14. Organisms have :

  1. A closed system
  2. Open system
  3. A system of exporting energy
  4. A system of exporting materials.

Answer: 2. Open system

The Living World MCQs For NEET

Question 15. Energy is required by cells for:

  1. Overcoming entropy
  2. Biosynthesis of molecules
  3. Transport
  4. All of the above.

Answer: 4. All of the above.

Question 16. heterotrophs take energy from :

  1. Light
  2. Inorganic molecules
  3. Organic molecules
  4. Various reactions.

Answer: 3. Organic molecules

Question 17. Homeostasis operates at which level of hierarchy?

  1. Cell level
  2. Population-level
  3. Ecosystem
  4. All of the above.

Answer: 4. All of the above.

The Living World MCQs For NEET

Question 18. Female anopheles mosquitoes suck human blood to obtain:

  1. Malarial parasites
  2. Proteins for the production of egg
  3. DNA
  4. Chemicals for attraction of males.

Answer: 2. Proteins for the production of egg

Question 19. Both the entire and finely dissected leaves occur in :

  1. Ivy
  2. Eucalyptus
  3. Linmopliila
  4. Nyntpltaea.

Answer: 3. Linmopliila

Question 20. The flowers of which of the following plants resemble the tangles of certain wasps:

  1. Lathyrus aphaca
  2. Ophrys nuciferine
  3. Calotropis procera
  4. Antigonon spp.

Answer: 2. Ophrys nuciferine

Question 21. DNA is unique among molecules in being :

  1. Able to withstand high temperatures
  2. Form polymer complex
  3. Replicate itself
  4. Replicate and transcribe RNAs.

Answer: 4. Form polymer complex

Important Questions On The Living World NEET

Question 22. Which of the following organize themselves into societies with adaptations for the division of labor?

  1. Mosquitoes
  2. Honey bees
  3. Termites
  4. Both 2 and 3.

Answer: 4. Both 2 and 3.

Question 23. Glucose concentration of blood for normal body functioning:

  1. 0.9 gin/100 ml
  2. 80-100/Mg 100 ml
  3. 200 Mg/100 ml
  4. 500 Mg/100 ml.

Answer: 2. 80-100/Mg 100 ml

Question 24. Common salt helps in the digestion of food because it:

  1. Maintains turgidity of rbc
  2. Prevents dehydration
  3. It is an important constituent of blood plasma
  4. It forms hc1 of gastric juice and digestion occurs in an acidic medium.

Answer: 4. It forms hc1 of gastric juice and digestion occurs in an acidic medium.

Question 25. Kangaroo makes use of its thick tail as the fifth limb. It is an example of:

  1. Short term adaptation
  2. Long term adaptation
  3. Temporary adjustment for sitting
  4. None of the above.

Answer: 2. Long-term adaptation

Question 26. Adaptations significant for the evolution of species are :

  1. Short-term and heritable
  2. Long-term and heritable
  3. Long-term and non-heritable
  4. Short-term and non-heritable.

Answer: 2. Long-term and heritable

Question 27. A wheat crop is ripening in the field. It shows :

  1. Energy transfer
  2. Energy transformation
  3. Entropy
  4. All of the above.

Answer: 4. All of the above.

Important Questions On The Living World NEET

Question 28. Geotropism is an example of :

  1. Short term adaptation
  2. Long term adaptation
  3. None of above
  4. Both of the above.

Answer: 1. Short-term adaptation

Question 29. Artificial blood is :

  1. Chloro fluorocarbons
  2. Pfc (perfluorocarbons)
  3. Lsd
  4. Leghaemoglobin.

Answer: 2. Pfc (perfluorocarbons)

Question 30. Why drip of glucose anil not fructose is given to a needy patient

  1. Glucose acts as a respiratory fuel
  2. It is an open-chain simple sugar and provides instant energy
  3. Fructose changes the pH of body fluid
  4. All of the above.

Answer: 4. All of the above.

Question 31. The short-term adaptations develop due to a temporary change in the environment and arc :

  1. Inherited through genes
  2. Inherited by male
  3. Inherited by female
  4. Not inherited.

Answer: 4. Not inherited.

Question 32. The study of the migration of birds is called :

  1. Ornithology
  2. Etiology
  3. Kalology
  4. Phenology.

Answer: 4. Phenology.

Important Questions On The Living World NEET

Question 33. Which of the following explanations accounts for the statement: “it has yet not been possible to create life”?

  1. The nature of molecular organization is complex and not completely understood
  2. All molecules of life have not been identified yet
  3. Most molecules are known except for a few
  4. The earth is now with reducing conditions.

Answer: 1. The nature of molecular organization is complex and not completely understood

Question 34. Price of life is :

  1. Atp
  2. Photosynthesis and respiration
  3. Death
  4. All the above

Answer: 4. All the above

Question 35. The adaptation shown by the entire species is :

  1. Temporary
  2. Permanent
  3. Both of 1 and 2
  4. None of the above.

Answer: 2. Permanent

Question 36. Which factor is not involved in dna replication?

  1. Control enzymes
  2. Monomers
  3. Energy source-atp
  4. None of the above.

Answer: 4. None of the above.

Question 37. Atom is fundamental to an understanding of chemistry. What is fundamental to an understanding of biology?

  1. Cell-organelles
  2. Cell
  3. Ecosystem
  4. Biosphere.

Answer: 2. Cell

Question 38. Essential aspects of life are :

  1. Energy kinetics
  2. Reproduction
  3. Adaptation
  4. All of the above.

Answer: 4. All of the above.

Important Questions On The Living World NEET

Question 39. Which one of the following is called the energy currency of cells?

  1. Adp
  2. Amp
  3. Atp
  4. Gtp.

Answer: 3. Atp

Question 40. The most at of the human body is:

  1. Hypothalamus
  2. Pituitary
  3. Thyroid
  4. Pineal body.

Answer: 1. Hypothalamus

Question 41. The contraction of muscles  represents the transformation of chemical energy into:

  1. Heat energy
  2. Light energy
  3. Mechanical energy
  4. Electrical energy.

Answer: 3. Mechanical energy

Question 42. The ilex elopement of extra melanin line to exposure of skin to sunlight is helpful in:

  1. Maintaining the skin viable
  2. An absorbing all solar radiations
  3. Protecting internal organs front radiations
  4. Both 2 and 3.

Answer: 4. Both 2 and 3.

Question 43. If a person is exposed to an excess of sunlight, his skin becomes dark. This is:

  1. An adaptation
  2. Mimicry
  3. Pharmacology
  4. Both 4 and 3.

Answer: 1. An adaptation

Characteristics Of Living Organisms NEET

Question 44. Some organisms resemble other organisms, which escape from enemies. This phenomenon is called:

  1. Homology
  2. Analogy
  3. Adaptation
  4. Mimicry.

Answer: 4. Mimicry.

NEET Biology MCQ The Living World Question 45. The adaptations are for :

  1. Change
  2. Improvement
  3. Survival
  4. Decline.

Answer: 3. Survival

Question 46. Organisms with the smallest life span are:

  1. Silk moth
  2. Mayfly
  3. Sequoia
  4. Man.

Answer: 2. Mayfly

Question 47. The highest level of organization is:

  1. Protoplasm
  2. Organ system
  3. Ecosystem
  4. Ecosphere.

Answer: 4. Ecosphere.

Question 48. The amount of energy released per mole of glucose is:

  1. 6.86 kcal
  2. 68.6 kcal
  3. 668 Kcal
  4. 686 Kcal.

Answer: 4. 686 Kcal.

Question 49. Which of the following is a long-range adaptation?

  1. Ankle bone
  2. Opposable thumb
  3. Tail in kangaroo
  4. All of the above.

Answer: 4. All of the above.

Question 50. Which type of organization is found in Hydra?

  1. Tissue
  2. Protoplasmic
  3. Organ system
  4. Cellular.

Answer: 1. Tissue

Characteristics Of Living Organisms NEET

Question 51. The death is significant because it :

  1. Kills the organisms
  2. Restores the efficiency of any organization
  3. Keeps a check on the increasing population
  4. Both 2 and 3

Answer: 4. Both and.

Question 52. Which of (lie following maintains the balance of species and contributes to homeostasis?

  1. Death
  2. Reproduction
  3. Physiotherapy
  4. Both and (11).

Answer: 4. Both and (11).

Question 53. Non-covalent bonds include all the following:

  1. A carbon-carbon double bond
  2. An ionic bond
  3. A hydrogen bond
  4. Van der Waal’s interaction.

Answer: 1. A carbon-carbon double bond

Question 54. Covalent bonds in contrast to non-covalent bonds:

  1. Have an energy level of about 1 keal/mol
  2. Are stable relative to the kinetic energy of molecules at room temperature
  3. Are readily broken at room temperature
  4. Are the main force in maintaining the three-dimensional structure of large molecules such as proteins.

Answer: 4. Are the main force in maintaining the three-dimensional structure of large molecules such as proteins.

Question 55. Which of the following is not a feature of living organisms?

  1. Highly organized and complete entities formed of one or more cells
  2. Carry out and control numerous chemical reactions
  3. Cannot acquire energy
  4. Grow in size, develop, and produce offspring similar to them.

Answer: 3. Grow in size, develop and produce offspring similar to them.

Question 56. The hierarchies of biological organization start with :

  1. Cell level and end in biosphere
  2. Molecular level and end in ecosystem
  3. Submicroscopic molecular level and end in the biosphere
  4. Microscopic cellular level and end in the biosphere.

Answer: 3. Submicroscopic molecular level and end in the biosphere

Question 57. Water is a polar molecule because of its magnetic poles. In the water molecule:

  1. Oxygen atom bears a partial negative charge (8′)
  2. Each hydrogen atom has a partial, positive charge (8‘)
  3. Oxygen atom has a positive charge and hydrogen a negative charge
  4. Both 1 and 2.

Answer: 4. Both 1 and 2.

The Living World NEET Previous Year Questions

Question 58. Common table salt (NaCl) is an important lattice of ions in which atoms are held together by electrical attractions. Which of the following is not correct?

  1. Direct NaCl molecules can be formed
  2. No direct nacl molecule can be formed
  3. The electronegativity of a chlorine atom is 3-1 is higher than that of a sodium atom (0-9)
  4. Nacl is electrically neutral.

Answer: 2. No direct nacl molecule can be formed

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