Biology Topic-9


Biology-9

1. What is the reproduction process called where only one parent is involved ?- Asexual Reproduction

2. What is the reproduction process called where two parents are involved ?- Sexual Reproduction. Fusion of gametes take place here.

3. Examples of Fission  (asexual) reproduction : Amoeba , Bacteria

4. Examples of the Budding (asexual ) reproduction : Yeast , Sponge

5. Examples of Syngamy ( sexual )  reproduction  :  Cockroach , Frog and Human Being

6. Important Organs of the Male Reproductive System :

·       Testes

·       Sperm Duct

·       Urethra

·       Prostate Gland

·       Cowper’s Gland

7. At what age male can produce spermatozoa ( sperm ) ?- 13-14 years

8. Hairs on the body of the male are the outcome ________. – Hormones

9. What is the name of the sperm carrying duct in the human beings ?- Vas Deferens

10. Important Organs of the Female Reproductive System :

·       Ovaries

·       Oviducts

·       Uterus

·       Vagina

·       Fallopian Tubes

11. Within how many days the ovaries release the ovum (egg cell ) ?- 28 Days

12. ______ makes the connection between the developing embryo and mother ? – Placenta

13. The embryo in human beings develops in nine months. This period is known as _______ period.- Gestation

14. What is the process of nourishment of the child with mother’s milk called ?- Lactation

15. What is the first milk called that comes out of the mammary gland of mother after the child birth ?- Colostrum

16. What are the constituents of Colostrum ?- Protein , Antibody. Antibody grants immunity to the new born baby against various diseases .

17. What is the reproduction period in the females called ?- Menstrual Cycle

18. At what age female puberty (ability to bear child ) begins ?- 10-14 Years

19. At what age the female reproductive cycle stops ?- 40-50 Years

20. What is the release of the first menstrual flow or period called in females ?- Menarche

21. What is the stopping of female reproductive cycle called ?- Menopause

22. What is the periodic vaginal bleeding during the menstrual cycle called ?- Menstruation

23.  How many mature eggs are released by women in a year ?- 13

24. Hormones that control the menstrual cycle :

·       FSH

·       LH

·       Oestrogen

·       Progestrogen

25. The prevention of the Union of Sperm and Ovum is called _______-Contraception

26. Under which test the sex and disorder of the foetus is tested ? - Aminocentesis

27. Gestation Period of Some Animals :

·       Buffalo – 310 Days

·       Elephant-610 Days

·       Lion-120 Days

·       Horse -340 Days

·       Whale -365 Days

28 . What is system having the ductless gland called ?- Endocrine System

28. Different Types of Hormones of Endocrine System Called

·       Steroids

·       Peptides

·       Amino Acid Derivatives

29.  _______is a part of the forebrain and regulates the pituitary glands and maintains body temperature .- Hypothalamus

30. _______governs  other endocrine glands like thyroid , adrenal and gonads. – Pituitary Gland / Hypophysis/ Master Gland

31.Which is the largest gland of the Endocrine System ?- Thyroid Gland. It is locked in the neck region.

32. What is the epithet used for the Thyroid Gland ?- Pace Setter of the Endocrine System

33. Which hormone is  secreted by the Thyroid Gland ?

·       Thyroxine

·       Thyrocalcitonin

34.  _______glands are glands that produce and secrete substances onto an epithelial surface by way of a duct and not the blood directly- Exocrine 

35.  _______glands are the glands that make and secrete them into the bloodstream through which they travel to affect distant organs- Endocrine

36. __________ is both an endocrine and exocrine gland ?- Pancreas

37. What is the endocrine part of Pancreas called ?- Islet of Langerhans

38. What are the cells that are produced by the Islet of Langerhans ?- Alpha cells , Beta Cells and Delta Cells

39. What is the main function of the Alpha cell in Pancreas ?- They secrete glucagon hormone which increase blood sugar level.

40. What is the main function of the Beta cell in Pancreas ?- They secrete insulin that decrease the amount of sugar in the blood.

41. What is the main function of the Delta cell in Pancreas ?- They secretes somatostatin hormone which is an anti-growth factor.

42. Which gland is known as Emergency Gland ?- Adrenal Gland

43. What are the two layers of the Adrenal Gland ?

·       Cortex

·       Medulla

44. What is the function of the Adrenal Gland in the body ?- It increases the blood glucose level  , blood pressure and the cardiac output.

45. Where is the Pineal Gland situated ?- In the brain

46. What is the name given to the Pineal Gland ?- Clockwork Gland

47. What is the function of the Pineal Gland ?- It regulates ovaries and has an effect on the biological rhythm.

48. ________secretes steroid hormones ?- Gonads

49. What is the Ovarian Hormones called ?- Oestrogen.

50. What are the Testicular Hormones called ?- Androgens

 

 

 

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