The Living World

What is living? Practice Questions

38 free What is living? practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All What is living? questions

38 questions
  1. Q1. Which of the following sets of characteristics is considered the defining properties of living organisms without exception?
  2. Q2. In unicellular organisms like Amoeba, which two processes are often considered synonymous?
  3. Q3. Why is 'increase in body mass' not considered a defining property of living beings?
  4. Q4. Which statement correctly describes 'Metabolism'?
  5. Q5. The most obvious and technically complicated feature of all living organisms is:
  6. Q6. Self-consciousness is a unique characteristic of which organism?
  7. Q7. In plants, growth occurs ______; whereas in animals, growth occurs ______.
  8. Q8. Which of the following organisms do not reproduce at all?
  9. Q9. Isolated metabolic reactions in a test tube are:
  10. Q10. Photoperiod affects reproduction in which type of organisms?
  11. Q11. What is the primary reason why it is difficult to define the 'living state' of a patient in a coma?
  12. Q12. Living organisms are best described as:
  13. Q13. Which process results in the production of progeny possessing features more or less similar to those of parents?
  14. Q14. Fungi multiply and spread easily due to the production of millions of:
  15. Q15. True regeneration is observed in which of the following?
  16. Q16. Which of the following is NOT a result of cellular metabolism?
  17. Q17. Biological organization begins at the:
  18. Q18. A living organism can be exceptionally differentiated from a non-living thing on the basis of its ability for:
  19. Q19. Which of the following is the correct sequence of levels of biological organization?
  20. Q20. Properties of organs are not present in the constituent tissues but arise as a result of:
  21. Q21. Which of the following is considered a 'twin characteristic' of growth in living organisms?
  22. Q22. In which of the following pairs of organisms is fragmentation the primary method of asexual reproduction?
  23. Q23. Why is reproduction not considered an all-inclusive defining characteristic of living organisms?
  24. Q24. Metabolic reactions can be demonstrated outside the body in cell-free systems. These isolated reactions are:
  25. Q25. Which level of organization is the point where the 'properties of life' first emerge?
  26. Q26. If we define growth as an increase in body mass, then non-living objects like mountains and sand mounds also grow. How is this growth different from that of li…
  27. Q27. The sum total of all chemical reactions occurring in our body is called:
  28. Q28. Which of the following is the most technically complicated and defining feature of all living organisms?
  29. Q29. Which organism is known to exhibit 'self-consciousness'?
  30. Q30. What happens to the properties of tissues that are not present in the constituent cells?
  31. Q31. A patient in a coma, supported by machines that replace heart and lungs, is technically 'brain-dead.' Such a patient:
  32. Q32. Choose the correct statement regarding growth in plants and animals:
  33. Q33. Which of the following does not exist as a non-living object but is a characteristic of all living things?
  34. Q34. The property of self-replication, evolution, and self-regulation are characteristic of:
  35. Q35. What makes it difficult to define the 'living state' in a coma patient?
  36. Q36. Which of the following organisms shows true regeneration?
  37. Q37. In unicellular organisms like bacteria or unicellular algae, growth is synonymous with:
  38. Q38. Consciousness is a defining property because: