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CBSE Important Questions

CBSE Guess > Papers > Important Questions > Class X > 2008 > Science > Science By :- Nagesh Kumar

Science - Reproduction

  1. Why is DNA copying an essential part of the process of reproduction?
  2. Why is variation beneficial to the species but not necessarily for the individual?
  3. What are the changes seen in the girls at the time of puberty?
  4. How does the embryo get nourishment inside the mother’s body?
  5. Write any one method to avoid pregnancy in human beings.
  6. Where does fertilization take place in human female?
  7. What are advantages of sexual reproduction over asexual reproduction?
  8. How does the vegetative reproduction take place in Bryophyllum?
  9. Draw and label the diagram of human female reproductive system.
  10. Why is vegetative propagation practiced for growing some types of plants?
  11. If a woman is using copper-T will it help in protecting her from sexually transmitted disease?
  12. Name the parts of female reproductive system in human beings.
  13. How many individuals are involved in sexual reproduction?
  14. Name any one organism showing process of regeneration.
  15. What are the functions performed by the testis in human beings?
  16. What is menstruation?
  17. Name the different methods of contraception?
  18. What could be the reasons for adopting contraceptive methods?
  19. How does reproduction help in providing stability to populations of species?
  20. Draw and label longitudinal section of a flower.
  21. What type of reproduction involves gametes?
  22. How does binary fission differ from multiple fission?
  23. How is the process of pollination different from fertilization?
  24. What is the role of the seminal vesicles and the prostrate gland?
  25. How does the asexual mode of reproduction take place in yeast?
  26. Write full form of DNA How does the mode of reproduction different in unicellular and multicellular organisms?
  27. Show by figures only the asexual mode of reproduction by budding in case of Hydra.
  28. Draw and label the figure showing germination of pollen on stigma.


  1. Electricity
  2. Light Reflestion and Refraction Human Eye and The Colourful World
  3. Source of Energy
  4. Our Environment/Management of Natural Resources
  5. Life Processes
  6. Control and Coordination
  7. Reproduction
  8. Heredity and Variation
  9. Chemical Reactions
  10. Acid Bases and Salts
  11. Metals and Non-Metals
  12. Carbon and its Compounds
  13. Periodic Classification of Elements