Grade 10- Biology

GRADE 10- BIOLOGY

How do Organisms Reproduce?

1 Mark Questions:

1. Name two organisms which reproduced by fragmentation method.

2. Which is double fertilization?

3. What is asexual reproduction?

4. What is self-pollination?

5. What is ovulation?
6. What is vegetative propagation?

7. Name two body part which human beings can regenerate?

8. What is the importance of DNA copying in reproduction?

9. What is Syngamy?

10. Name the type of fission carried out by Amoeba.

12. List two functions performed by ovaries in human female.

13. What is asexual reproduction?

14. Where does the fertilization take place in man?

15. Name the genital tract of female that receives sperms.

16. What is Placenta?

17. Give two examples of bisexual organisms.
18. In vegetative reproduction, the new individuals are genetically –

a) Similar b) Dissimilar c) Abnormal d) None of these

19. When an organism breaks into a number of parts and each part develop into an

Individual, it is called –

a) Budding b) Binary fission c) Regeneration d) Spore formation

20. In man, fertilization of ovum takes place in

a) Vagina b) ovary c) uterus d) Fallopian tubes

21. Define parthenogenesis.

22. How many male gametes are produced by pollen grains?
23. During grafting, the portion of plant that is grafted is called –

a) Stock b) Scion c) stalk d) stem

24. Which part of the flower forms the fruit?

a) Whole flower b) Only stamens and carpel c) Only ovary d) Only carpel

25. Anemophily is the pollination by –

a) Birds b) Rain c) insects d) Wind

26. What is the product of fertilization?

27. Name the structure through which pollen tubes enters the ovule. [1]
28. A common feature of reproduction in Amoeba, spirogyra and yeast is that –

a) Asexual reproduction occurs after sexual reproduction

b) Asexual reproduction occurs before sexual reproduction

c) Asexual reproduction does not involve gametes

d) Asexual reproduction involves only one parent

29. The normal duration of menstrual cycle is

a) 7 – 8 days b) 13 – 15 c) 3 – 4 days d) 28 days

30. Which of the following is an IUCD?

a)Copper – T b) diaphragm c) oral pills d) tubectomy

31. What is parturition?

32. What is puberty?

33. Fertilization in plants occurs in the –

a) Embryo sac b) Stylec) Pollen tube d) Stigma

34. Characters that are transmitted from parents to offspring during reproductionShow –

a) Only similarities with parents b) only variations with parents

c) Neither similarities nor variations d) both similarities and variations with parents

35. Which among the following diseases is not sexually transmitted?

a) Syphilisb) Gonorrhea c) HIV – AIDS d) Hepatitis

36. What is tubectomy?

37. Name the causative organism, of AIDS?
38. A common feature of reproduction in Amoeba, spirogyra and yeast is that –

a) They reproduce only sexuallyb) They are all unicellular

c) They reproduce asexually d) they are all multicellular

39. Which of this seminal fluid?

a) Prostate gland b) Cowper’s gland c) Seminal vesicle d) all of these

40. At the time of entering into ovule, pollen tube has

a) three male nuclei b) two mole nuclei c) one gamete nucleus d) four male gametes