This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > How Do Organisms Reproduce > Class 10 Science Chapter 8 How Do Organisms Reproduce – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A-Germ cell creation machinery is located outside body in males.R-It is safer for the cells and tissues. A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true and R is not the correct explanation of A. C) A is true but R is false. D) A is false but R is true. Show Answer Correct Answer: C) A is true but R is false. 2. All of these animals are pollinators EXCEPT A) Butterfly. B) Bird. C) Fish. D) Bee. Show Answer Correct Answer: C) Fish. 3. Bryophyllum can be propagated vegetatively by the A) Stem. B) Root. C) Leaf. D) Flower. Show Answer Correct Answer: C) Leaf. 4. Watermelon is a ..... flower. A) Unisexual. B) Bisexual. C) All the above. D) None of the above. Show Answer Correct Answer: A) Unisexual. 5. In human females, an event that reflects onset of reproductive phase is A) Growth of body. B) Change in voice. C) Menstruation. D) Changes in hair pattern. Show Answer Correct Answer: C) Menstruation. 6. The rapid spreading of bread mould on slices of bread is due to:(i) Presence of large number of spores in air.(ii) Presence of large number of thread-like branched hyphae.(iii) Presence of moisture and nutrients.(iv) Formation of round shaped sporangia. A) (i) and (iii). B) (ii) and (iv). C) (i) and (ii). D) (iii) and (iv). Show Answer Correct Answer: A) (i) and (iii). 7. A-Multiple fission produces many daughter cells simultaneouslyR-Multiple fission occurs during favourable conditions. A) Both A and R are true, and R is the correct explanation of A. B) Both A and R are true, and R is the correct explanation of A. C) A is true but R is false. D) A is false but R is true. Show Answer Correct Answer: C) A is true but R is false. 8. Factors responsible for the rapid spread of bread mould on slices of bread are(i) large number of spores.(ii) availability of moisture and nutrients in bread.(iii) presence of tubular branched hyphae.(iv) formation of round shaped sporangia. A) (i) and (iii). B) (ii) and (iv). C) (i) and (ii). D) (iii) and (iv). Show Answer Correct Answer: C) (i) and (ii). 9. What is a chromosome? A) A coiled up section of a nucleus. B) A coiled up section of Proteins. C) A coiled up section of DNA. D) None of the above. Show Answer Correct Answer: C) A coiled up section of DNA. 10. Which of the following organism reproduces by multiple fission? A) Plasmodium. B) Bacteria. C) Amoeba. D) Leishmania. Show Answer Correct Answer: A) Plasmodium. 11. Lippes loop is a hormone releasing IUD. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. In a seed, Plumule is called future ..... and radical is called future ..... A) Root, food store. B) Root, shoot. C) Food store, shoot. D) Shoot, root. Show Answer Correct Answer: D) Shoot, root. 13. A-Ovaries are the primary reproductive organs in a womanR-The function of ovaries is to make mature female sex cells and female sex hormones. A) Both A and R are true, and R is the correct explanation of A. B) Both A and R are true, and R is the correct explanation of A. C) A is true but R is false. D) A is false but R is true. Show Answer Correct Answer: A) Both A and R are true, and R is the correct explanation of A. 14. The part of the female reproductive system where fertilization takes place A) Uterus. B) Fallopian tube. C) Cervix. D) Ovary. Show Answer Correct Answer: B) Fallopian tube. 15. Amoeba reproduces by means of A) Fragmentation. B) Binary fission. C) Budding. D) Recapitulation. Show Answer Correct Answer: B) Binary fission. 16. The testes produce the male sex hormone called A) Oestrogen. B) Progesterone. C) Testosterone. D) None of the above. Show Answer Correct Answer: C) Testosterone. 17. The flowers in which stamens and pistils are present are called ..... A) Bisexual flowers. B) Disexual flowers. C) Unisexual flowers. D) Monosexual flowers. Show Answer Correct Answer: A) Bisexual flowers. 18. In Grafting base stem is called ..... A) Graft base. B) Mother stem. C) Stock. D) Scion. Show Answer Correct Answer: C) Stock. 19. The part of a flower that protects flower in bud form is A) Petals. B) Sepals. C) Stamen. D) Carpel. Show Answer Correct Answer: B) Sepals. 20. Organism grows new parts to replace broken-off ones A) REGENERATION. B) Mitosis. C) Budding. D) Fission. Show Answer Correct Answer: A) REGENERATION. 21. Freshly released human egg has: A) One Y-chromosome. B) One X-chromosome. C) Two X-chromosomes. D) One X-chromosome and one Y-chromosome. Show Answer Correct Answer: B) One X-chromosome. 22. The surgical method which prevents the sperms from reaching the ovum and pregnancy does not occur is: A) Vasectomy. B) Tubectomy. C) Condom. D) IUCD. Show Answer Correct Answer: A) Vasectomy. 23. At the time of entering into ovule, pollen tube has A) Four male gametes. B) Two male nuclei. C) One gamete nucleus. D) Three male nuclei. Show Answer Correct Answer: B) Two male nuclei. 24. The ..... cover and protect the flower bud. A) Petals. B) Anther. C) Sepals. D) Stamen. Show Answer Correct Answer: C) Sepals. 25. Fusion of gametes give rise to a single cell called A) Embryo. B) Foetus. C) Zygote. D) None of the above. Show Answer Correct Answer: C) Zygote. 26. Which structure in male reproductive system that transport the sperm out of the body? A) Urethra. B) Sperm duct. C) Seminal vesicle. D) Testis. Show Answer Correct Answer: A) Urethra. 27. The following one is the male part of the flower. A) Calyx. B) Corolla. C) Androecium. D) Gynoecium. Show Answer Correct Answer: C) Androecium. 28. The seeds of a flower are produced in the ..... A) Stamen. B) Ovule. C) Pistil. D) Sepal. Show Answer Correct Answer: B) Ovule. 29. What is the number of chromosomesin the gamete of an organism as compared to the somatic cells? A) Double. B) Equal. C) Half. D) Thrice. Show Answer Correct Answer: C) Half. 30. These are types of asexual Reproduction:MitosisFissionRegenerationBuddingVegetative Propagation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. Why is Reproduction Important? A) To increase birth rate. B) It is a time pass. C) To increase the size of the family. D) It is important for the survival of all living things. Show Answer Correct Answer: D) It is important for the survival of all living things. 32. Which of the following is an IUCD? A) Oral pills. B) Copper-T. C) Diaphragm. D) Tubectomy. Show Answer Correct Answer: B) Copper-T. 33. The embryo in humans gets nutrition from the mother's blood with the help of a special tissue called A) Villi. B) Placenta. C) Uterus. D) Womb. Show Answer Correct Answer: B) Placenta. 34. What process produces sperm? A) Spermatogensis. B) Oogenesis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Spermatogensis. 35. The following part of the flower protects the flower in bud condition? A) Calyx. B) Corolla. C) Androecium. D) Gynoecium. Show Answer Correct Answer: A) Calyx. 36. Which of the following is not a part of the female reproductive system in human beings A) Testis. B) Oviduct. C) Uterus. D) Ovary. Show Answer Correct Answer: A) Testis. 37. Which of the following glands produce sugars to provide energy for sperms? A) Seminal vesicle. B) Prostate gland. C) Cowper's glands. D) Epididymis. Show Answer Correct Answer: C) Cowper's glands. 38. Find the odd one out, with respect to mode of reproduction. A) Amoeba. B) Dog. C) Spirogyra. D) Hydra. Show Answer Correct Answer: B) Dog. 39. How does the pine tree reproduce? A) By producing cones. B) By producing flowers. C) By producing spores. D) None of the above. Show Answer Correct Answer: A) By producing cones. 40. A sperm fertilises the egg in- A) Vas deferens. B) Ovary. C) Fallopian tube. D) Uterus. Show Answer Correct Answer: C) Fallopian tube. 41. Spirogyra is an example of A) Fusion. B) Sexual Reproduction. C) Budding. D) Fragmentation. Show Answer Correct Answer: D) Fragmentation. 42. Vegetative propagation is said to occur when parts like the root, stem & leaf develop into new plants under appropriate conditions. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 43. Daughter cells formed after the division of zygote are known as A) Blastocyst. B) Blastomeres. C) Blastula. D) Morula. Show Answer Correct Answer: B) Blastomeres. 44. All the petals of the flower together are called ..... A) Calyx. B) Corolla. C) Sepals. D) Inflorescence. Show Answer Correct Answer: B) Corolla. 45. Which type of asexual reproduction is taking place?A planarian is a non-parasitic flatworm. If a planarian was injured by a predator, it could re-grow its body parts. If the body parts were not eaten by the predator, the part could re-grow into a whole new planarian as well. A) Vegetative propagation. B) Regeneration. C) Fission. D) Budding. Show Answer Correct Answer: B) Regeneration. 46. Why is greater genetic diversity important for a species? A) The species is more likely to survive disasters. B) The population of the species will never get too large. C) There will be less competition with other species. D) None of the above. Show Answer Correct Answer: A) The species is more likely to survive disasters. 47. Which among the following statements are false for unisexual flowers? A) They always possess stamen and pistil. B) They possess either stamen or pistil. C) They show cross pollination. D) Unisexual flowers posessing only stamens can not produce fruits. Show Answer Correct Answer: A) They always possess stamen and pistil. 48. The following is the male reproductive hormone A) Testosterone. B) Oestrogen. C) Thyroxine. D) Adrenaline. Show Answer Correct Answer: A) Testosterone. 49. Binary fission describes the type of reproduction where the organism divides to form- A) Two daughters. B) Many sprores. C) Two hyphae. D) Many buds. Show Answer Correct Answer: A) Two daughters. 50. Asexual mode of reproduction in Amoeba is referred to as A) Mitosis. B) Meiosis. C) Binary Fission. D) Multiple Fission. Show Answer Correct Answer: C) Binary Fission. 51. The reproductive part of flower is ..... A) Anther. B) Flower. C) Petal. D) Sepal. Show Answer Correct Answer: B) Flower. 52. Which glands produced the semen? A) Seminal vesicle only. B) Prostate gland only. C) Seminal vesicle and prostate gland. D) Seminal vesicle and testis. Show Answer Correct Answer: C) Seminal vesicle and prostate gland. 53. The type of reproduction in human beings is A) Regeneration. B) Budding. C) Spore formation. D) None of these. Show Answer Correct Answer: D) None of these. 54. A feature of reproduction that is common to yeast, amoeba and bacterium is that- A) They are all multicellular. B) They are all unicellular. C) They reproduce asexually. D) They reproduce only sexually. Show Answer Correct Answer: C) They reproduce asexually. 55. Which part of the flower produces female gamete? A) Stamen. B) Stigma. C) Anther. D) Ovary. Show Answer Correct Answer: D) Ovary. 56. How many cells and nuclei are present in the embryo sac? A) 8 cells and 8 nuclei. B) 7 cells and 8 nuclei. C) 1 cell and 1 nuclei. D) 7 cells and 7 nuclei. Show Answer Correct Answer: B) 7 cells and 8 nuclei. 57. Mammals (including human beings), birds and reptiles are examples of A) Internal fertilisation. B) External fertilisation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Internal fertilisation. 58. The process of formation of two cells by the division of one cell is called ..... A) Budding. B) Multiple fission. C) Binary fission. D) Fragmentation. Show Answer Correct Answer: C) Binary fission. 59. Among the following select the statements that are true regarding the sexual reproduction in flowering plants?(i) Fertilisation is a compulsory event(ii) It always results in the formation of zygote(iii) Offsprings formed are clones(iv) It requires two types of gametes A) (i) and (iv). B) (i), (ii) and (iii). C) (i), (ii) and (iv). D) (ii) and (iv) and (iv) and (iv). Show Answer Correct Answer: C) (i), (ii) and (iv). 60. 7-Which among the following statements are false for sexual reproduction in flowering plants? A) It requires two types of gametes. B) Fertilization is compulsory. C) It always results in formation of zygote. D) Offsprings are clones. Show Answer Correct Answer: D) Offsprings are clones. ← PreviousNext →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 8 How Do Organisms Reproduce Quiz 1Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 2Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 3Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 5Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 6Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 7 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books