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 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Spirogyra reproduces by means of ..... A) Fragmentation. B) Budding. C) Binary fission. D) Multiple fission. Show Answer Correct Answer: A) Fragmentation. 2. In a flower the parts that produce male and female gametes are A) Filament and stigma. B) Stamen and anther. C) Anther and ovary. D) Stamen and style. Show Answer Correct Answer: C) Anther and ovary. 3. Which female hormone maintains pregnancy? A) LH. B) Estrogen. C) FSH. D) Progesterone. Show Answer Correct Answer: D) Progesterone. 4. Amphibians (like frogs and toads) and fishes are examples of A) Internal fertilisation. B) External fertilisation. C) All the above. D) None of the above. Show Answer Correct Answer: B) External fertilisation. 5. The ability of a cell to divide into several cells during reproduction in Plasmodium is called A) Reductional division. B) Budding. C) Binary fission. D) Multiple fission. Show Answer Correct Answer: D) Multiple fission. 6. A major male sex organ that produces and stores sperm. A) Prostate Gland. B) Testicle. C) Ovary. D) Vas deferens. Show Answer Correct Answer: B) Testicle. 7. Which is the site of fertilisation? A) Uterus. B) Vagina. C) Fallopian tubes. D) Cervix. Show Answer Correct Answer: C) Fallopian tubes. 8. Which of the following is the correct sequence of organs of male reproductive system for transport of sperms? A) Witness, vas deferens, ureter. B) Testis, ureter, urethra. C) Vas deferens, witness, urethra. D) Witness, vas deferens, urethra. Show Answer Correct Answer: D) Witness, vas deferens, urethra. 9. The anther contains: A) Pollen grains. B) Eggs. C) Sepals. D) Carpel. Show Answer Correct Answer: A) Pollen grains. 10. In ..... the disease of the parent plants get transferred to the offspring A) Sexual reproduction. B) Asexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Asexual reproduction. 11. A Planaria worm is cut horizontally in the middle into two halves P and Q such that the part P contains the whole head of the worm. Another Planaria worm is cut vertically into two halves R and S in such a way that both the cut pieces R and S contain half head each. Which of the cut pieces of the two Planaria worms could regenerate to form the complete respective worms? A) Only P. B) Only R and S. C) Only P, R and S. D) P, Q, R and S. Show Answer Correct Answer: D) P, Q, R and S. 12. All the variations are ..... A) Harmful. B) Useful. C) Both. D) None. Show Answer Correct Answer: C) Both. 13. The fertilisation which occurs out side the female body is called A) Internal fertilisation. B) External fertilisation. C) All the above. D) None of the above. Show Answer Correct Answer: B) External fertilisation. 14. In plants, the length of pollen tube formed during the process of reproduction depends on: A) The distance between the pollen grain and lower part of style. B) The distance between the pollen grain on upper surface of stigma and style. C) The distance between the pollen grain and upper surface of stigma. D) The distance between the upper surface of stigma and lower part of style. Show Answer Correct Answer: A) The distance between the pollen grain and lower part of style. 15. A man has a undescended testicles a condition in which the testes are not descended out from the abdominal cavity. This condition leads to infertility of male because: A) Nutrients are nor provided to the sperms. B) Testerone is not produced. C) Lower temperature is not provided for the development of sperms. D) Higher temperature is not provided for the development of sperms. Show Answer Correct Answer: C) Lower temperature is not provided for the development of sperms. 16. Which of the following plant are propagated by the roots? A) Rose. B) Carrot. C) Bryophyllum. D) Potato. Show Answer Correct Answer: B) Carrot. 17. The flower of the Hibiscus plant is A) Bisexual. B) Unisexual. C) None of this. D) Both Unisexual and Bisexual. Show Answer Correct Answer: A) Bisexual. 18. The ratio of number of chromosomes in a human zygote and a human sperm is: A) 1:2. B) 1:3. C) 3:1. D) 2:1. Show Answer Correct Answer: D) 2:1. 19. In the list of organisms given below, those that reproduce by the asexual method are(i) banana (ii) dog (iii) yeast (iv) Amoeba A) (ii) and (iv). B) (i), (iii) and (iv). C) (i) and (iv). D) (ii) and (iv) and (iv) and (iv). Show Answer Correct Answer: B) (i), (iii) and (iv). 20. The narrator says the hydra will be "almost" an exact copy of its parent. What process might sometimes cause a genetic change during asexual reproduction? A) Meiosis. B) Crossing over. C) Mutation. D) None of the above. Show Answer Correct Answer: C) Mutation. 21. An organism capable of reproducing by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is: A) Paramecium. B) Spirogyra. C) Hydra. D) Bryophyllum. Show Answer Correct Answer: C) Hydra. 22. Menstruation flow at the end of the menstruation period is due to degeneration of A) Endometrium of uterus. B) Ovaries. C) Corpus Luteum. D) Unfertilized ovum. Show Answer Correct Answer: A) Endometrium of uterus. 23. The offsprings formed by sexual reproduction exhibit more variations because ..... A) B) genetic material comes from two parents of same species. B) Genetic material comes from many parents. C) Sexual reproduction is a lengthy process. D) Genetic material comes from two parents of different species. Show Answer Correct Answer: A) B) genetic material comes from two parents of same species. 24. The function of cotyledon is A) Absorb water from soil. B) It has no function. C) Provides nutrition to the seed. D) Absorb oxygen for respiration. Show Answer Correct Answer: C) Provides nutrition to the seed. 25. In asexual reproduction, all of the offspring are: A) Physically Identical. B) Genetically Identical. C) Physically and Genetically Identical. D) Not Identical. Show Answer Correct Answer: B) Genetically Identical. 26. These are types of sexual Reproduction:Mitosis Fission Regeneration Budding Vegetative Propagation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 27. The asexual reproduction in the Spirogyra involves ..... A) Breaking up of filaments into smaller bits. B) Division of a cell into many cells. C) Division of a cell into two cells. D) Formation of a large number of buds. Show Answer Correct Answer: A) Breaking up of filaments into smaller bits. 28. There is no natural death in single celled organisms like Amoeba and bacteria because A) They cannot reproduce sexually. B) They reproduce by binary fission. C) Parental body is distributed among the offspring. D) They are microscopic. Show Answer Correct Answer: C) Parental body is distributed among the offspring. 29. Characters that are transmitted from parents to offspring during reproduction show A) Only similarities with parents. B) Only variations with parents. C) Both similarities and variations with parents. D) Neither similarities nor variations. Show Answer Correct Answer: C) Both similarities and variations with parents. 30. Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because A) Sexual reproduction is a lengthy process. B) Greater amount of DNA is involved in sexual reproduction. C) Genetic material comes from parents of two different species. D) Gametes of parents have qualitatively different genetic composition. Show Answer Correct Answer: D) Gametes of parents have qualitatively different genetic composition. 31. Which of the following are examples of vegetative reproduction in plants? A) Tomato, lady's finger, onion and cauliflower. B) Potato, ginger, onion and sugarcane. C) Cauliflower, onion, potato and tomato. D) Lady's finger, onion, ginger and sugarcane. Show Answer Correct Answer: B) Potato, ginger, onion and sugarcane. 32. Shubham is studying about the process of regeneration in planaria. He removed the head of planarial worm from its body. What will happen to the two body fragments of planarial worm? A) The planarial worm will die. B) The removed head will grow into new planarial worm while body without head will die. C) The body will grow into new planarial worm while the removed head will die. D) Both removed head and body without head will grow into new planarial worms. Show Answer Correct Answer: D) Both removed head and body without head will grow into new planarial worms. 33. Rhizopus reproduce through- A) Bud. B) Spores. C) Tendril. D) Stock. Show Answer Correct Answer: B) Spores. 34. The development of root and shoot in tissue culture is determined by ..... A) Temperature. B) Nutrients. C) Auxin and cytokinin ratio. D) None of these. Show Answer Correct Answer: C) Auxin and cytokinin ratio. 35. The rope like structure containing blood vessels that connects the placenta with the fetus is known as A) Umbilical cord. B) Placenta. C) Amnion. D) Embryo. Show Answer Correct Answer: A) Umbilical cord. 36. The gametes are special type of cells called reproductive cells which contain only ..... the amount of DNA A) Same. B) Half. C) Double. D) 4 times. Show Answer Correct Answer: B) Half. 37. 5-When an animal is cut into pieces and each part gives rise to new organism the process is called ..... A) Spore formation. B) Fragmentation. C) Budding. D) Regeneration. Show Answer Correct Answer: B) Fragmentation. 38. In human males, the testes lie in the scrotum, because it helps in the A) Process of mating. B) Easy transfer of gametes. C) Formation of sperms. D) All the above. Show Answer Correct Answer: C) Formation of sperms. 39. When living tissue from a plant is extracted and placed in a medium, it is called ..... A) Horticulture. B) Transplantation. C) Explant. D) None of these. Show Answer Correct Answer: C) Explant. 40. ..... contains all the information for making flowers, leaves, and every part of a plant. A) DNA. B) Growth hormone. C) Embryo. D) Pollination. Show Answer Correct Answer: A) DNA. 41. Formation of new DNA takes place by means of ..... A) Regeneration. B) Replication. C) Division. D) Separation. Show Answer Correct Answer: B) Replication. 42. In angiosperms, double fertilisation means: A) Fusion of two male gametes with two female gametes. B) Fusion of one egg cell twice with the female gametes. C) Fusion of one male gamete with the egg cell and the other male gamete with the bipolar nuclei. D) Fusion of one male gamete with the egg cell and the other male gamete with the endosperm. Show Answer Correct Answer: C) Fusion of one male gamete with the egg cell and the other male gamete with the bipolar nuclei. 43. The normal duration of menstrual cycle is A) 3-4 days. B) 13-15 days. C) 28 days. D) 7-8 days. Show Answer Correct Answer: C) 28 days. 44. The part of the flower which is present in the centre of the flower is A) Stamen. B) Sepals. C) Petals. D) Carpel. Show Answer Correct Answer: D) Carpel. 45. The property of an undifferentiated cell that has the potential to develop into an entire plant is called A) Budding. B) Totipotency. C) Subpotency. D) Cloning. Show Answer Correct Answer: B) Totipotency. 46. Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because A) Nodes are located near the soil. B) Nodes have meristematic cells. C) Nodes are shorter than intemodes. D) Nodes have non-photosynthetic cells. Show Answer Correct Answer: B) Nodes have meristematic cells. 47. The lining of the uterus coming out through the vagina (sometimes called 'having a period'). A) Conception. B) Fertilization. C) Menstruation. D) Implantation. Show Answer Correct Answer: C) Menstruation. 48. In Rhizopus, tubular thread like structures bearing sporangia at their tips are called A) Hyphae. B) Filaments. C) Rhizoids. D) Roots. Show Answer Correct Answer: A) Hyphae. 49. The following one is the Unisexual flower A) Green peas. B) Mustard. C) Watermelon. D) Shoe flower. Show Answer Correct Answer: C) Watermelon. 50. Out of the following organs which has the regenerative capacity? A) Intestine. B) Liver. C) Lungs. D) Stomach. Show Answer Correct Answer: B) Liver. 51. What is vegetative propagation? A) Its very difficult Taraksh (Mehul will tick this option XD). B) Plants produce their own kind. C) Similar to Sexual Reproduction. D) In this method new plants are produced from the vegetative parts of theplant like root, stem or leaf. Show Answer Correct Answer: D) In this method new plants are produced from the vegetative parts of theplant like root, stem or leaf. 52. Amoeba divided by ..... A) Vegetative generation. B) Binary Fission. C) Fragmentation. D) Budding. Show Answer Correct Answer: B) Binary Fission. 53. A-Sexual reproduction must include meiosis.R-It creates more variation compared to mitosis. 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. 54. The period of pregnancy is called A) Ovulation. B) Menstruation period. C) Gestation period. D) Incubation period. Show Answer Correct Answer: C) Gestation period. 55. How many nuclei are they in the embryo sac? A) 10. B) 4. C) 6. D) 8. Show Answer Correct Answer: D) 8. 56. Along the path of the vas-deferens the secretions of which gland provide nutrition to the sperms? A) Prostate glands. B) Seminal vesicles. C) Scrotum. D) Urinary bladder. Show Answer Correct Answer: B) Seminal vesicles. 57. The Correct Sequence Of Organs In The Male Reproductive System For Transport Of Sperms Is A) [A].Witness $\rightarrow$ vas deferens $\rightarrow$ urethra. B) [500].Witness $\rightarrow$ vas deferens $\rightarrow$ ureter. C) [C]. Testis $\rightarrow$ urethra $\rightarrow$ ureter. D) [B]. Testis $\rightarrow$ ureter $\rightarrow$ urethra. Show Answer Correct Answer: A) [A].Witness $\rightarrow$ vas deferens $\rightarrow$ urethra. 58. Plasmodium is an example of an organism showing A) Mitosis. B) Binary Fission. C) Meiosis. D) Multiple Fission. Show Answer Correct Answer: D) Multiple Fission. 59. The number of chromosomes in both parents and offsprings of a particular species remains constant because: A) Chromosomes get halved after gamete formation. B) Chromosomes get doubled after zygote formation. C) Chromosomes get doubled after gamete formation. D) Chromosomes get halved during gamete formation. Show Answer Correct Answer: D) Chromosomes get halved during gamete formation. 60. What process happens when pollen falls on a flower's pistil? A) Pollination. B) Maturity. C) Fertilization. D) Pollen. Show Answer Correct Answer: A) Pollination. 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