This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Reaching The Age Of Adolescence > Class 8 Science Chapter 10 Reaching The Age Of Adolescence – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why are endocrine glands also called ductless glands A) Because they release their hormones in bloodstreams through ducts. B) Because they release their hormones in bloodstreams without ducts. C) Because they release their hormones outside the body through ducts. D) None of the above. Show Answer Correct Answer: B) Because they release their hormones in bloodstreams without ducts. 2. What is the legal age for marrige in boys? A) 16. B) 21. C) 18. D) 23. Show Answer Correct Answer: B) 21. 3. During menstrual bleeding, the fluid that comes out of the vagina contains ..... along with blood. A) Zygote. B) Sperm. C) Embryo. D) Ovum. Show Answer Correct Answer: D) Ovum. 4. '' L.H" is secreted by the pituitary gland which is also known as? A) Left hand side. B) Luteinizing hormone. C) Both. D) None. Show Answer Correct Answer: B) Luteinizing hormone. 5. Features that distinguish the male from female are called A) Primary Sexual characters. B) Secondary Sexual characters. C) Tertiary Sexual characters. D) None of the above. Show Answer Correct Answer: B) Secondary Sexual characters. 6. During adolescence stage body undergoes changes leading to which maturity? A) Good understanding of life. B) Reproductive maturity. C) Both of above. D) None of above. Show Answer Correct Answer: B) Reproductive maturity. 7. ..... glands are small endocrine glandsin the neck of humans A) Pancreas. B) Thyroid. C) Adrenal. D) Parathyroid. Show Answer Correct Answer: D) Parathyroid. 8. Which among the boys and girls puberty starts earlier? A) Both together. B) Boys. C) Girls. D) Anyone. Show Answer Correct Answer: C) Girls. 9. Acne and pimples on the face are due to secretions of A) Bile from liver. B) Enzymes in the digestive tract. C) Tears from tear glands. D) Sebaceous glands during puberty. Show Answer Correct Answer: D) Sebaceous glands during puberty. 10. The transformation of the larva into an adult through a drastic change is called? A) Life. B) Metamorphosis. C) Insect life. D) None. Show Answer Correct Answer: B) Metamorphosis. 11. What physical changes typically occur during adolescence? A) Decrease in height, loss of muscle mass, decrease in appetite. B) Growth spurts, development of secondary sexual characteristics, voice deepening, changes in body shape. C) All the above. D) None of the above. Show Answer Correct Answer: B) Growth spurts, development of secondary sexual characteristics, voice deepening, changes in body shape. 12. Thyroxine is produced by A) Pituitary gland. B) Adrenal gland. C) Thyroid gland. D) Testes. Show Answer Correct Answer: C) Thyroid gland. 13. When the sperm contribute a Y-chromosome and the egg (ovum) contribute X chromosome, then the zygote would develop into a: A) Female child. B) Male child. C) Either female or male child. D) None of these. Show Answer Correct Answer: B) Male child. 14. Which hormone is responsible for the secondary sexual characters in girls? A) Estrogen. B) Testosterone. C) Thyroxine. D) Adrenaline. Show Answer Correct Answer: A) Estrogen. 15. Hormone that helps to convert tadpold to frog A) Adrenaline. B) Oestrogen. C) Thyroxine. D) Testosterone. Show Answer Correct Answer: C) Thyroxine. 16. What is the normal duration of menstrual cycle? A) 28 to 30 days. B) 23 to 25 days. C) 20 to 21 days. D) 26 to 28 days. Show Answer Correct Answer: A) 28 to 30 days. 17. Adrenalin hormone is produced by the: A) Pituitary gland. B) Thyroid gland. C) Adrenal gland. D) Pancreas. Show Answer Correct Answer: C) Adrenal gland. 18. Why is nutrition important for adolescents going through physical changes? A) Nutrition has no impact on physical changes. B) Proper nutrition supports growth, development, and overall health. C) All the above. D) None of the above. Show Answer Correct Answer: B) Proper nutrition supports growth, development, and overall health. 19. The first menstrual flow begins at Puberty is termed ..... A) Adolescence. B) Menarche. C) Reproduction. D) Menopause. Show Answer Correct Answer: B) Menarche. 20. Which of the following will occur in females at puberty? A) Ovulation. B) Enlargement of breasts. C) Broadening of hips. D) All of these. Show Answer Correct Answer: D) All of these. 21. For the metamorphosis of tadpoles which of the following elements must be available in water? A) Sulphur. B) Iodine. C) Carbon. D) Chlorine. Show Answer Correct Answer: B) Iodine. 22. Gland responsible to stimulates the growth of long bones. A) Thyroid. B) Pituitary. C) Pancreas. D) Adrenal. Show Answer Correct Answer: B) Pituitary. 23. The female hormone is called A) Estrogen. B) Testosterone. C) Adrenaline. D) None of these. Show Answer Correct Answer: A) Estrogen. 24. Pancreas secrete insulin to avoid A) Thyroid. B) Diabetes. C) Panic. D) High blood pressure. Show Answer Correct Answer: B) Diabetes. 25. Children between the ages of ..... and ..... are called adolescents. A) 12 and 18. B) 11 and 18. C) 12 and 19. D) 11 and 19. Show Answer Correct Answer: D) 11 and 19. 26. Excess secretion of aldosterone hormone causes? A) Diabetes. B) Addison's disease. C) Emotional imbalance. D) Goitre. Show Answer Correct Answer: B) Addison's disease. 27. At the age of 13 girls reach the height of A) 88%. B) 90%. C) 95%. D) 98%. Show Answer Correct Answer: C) 95%. 28. Puberty age in females is A) 10-12. B) 8-10. C) More than 14 years. D) 12-14. Show Answer Correct Answer: A) 10-12. 29. Name the harmonal effect that causes the growth of a tadepole to and adult frog A) Iodine. B) Metamorphosis. C) Insect hormone. D) Thyroxine. Show Answer Correct Answer: B) Metamorphosis. 30. Reproductive age in women starts when their: A) Breasts start developing. B) Body weight increases. C) Menstruation starts. D) Height Increases. Show Answer Correct Answer: C) Menstruation starts. 31. How does puberty differ between boys and girls? A) Girls grow pubic hair during puberty; boys don't. B) Girls grow taller during puberty; boys don't. C) Girls begin puberty slightly later than boys. D) Boys begin puberty slightly later than girls. Show Answer Correct Answer: D) Boys begin puberty slightly later than girls. 32. Which glands produce oil or Sebum? A) Thyroid glands. B) Pituitary glands. C) Sebum glands. D) Sweat glands. Show Answer Correct Answer: C) Sebum glands. 33. The change from larvae to adult is called A) Metamorphosis. B) Metastasis. C) Metabolism. D) Morphology. Show Answer Correct Answer: A) Metamorphosis. 34. Growth harmone is secreted by ..... gland. A) Pancreas. B) Exocrine. C) Endocrine. D) Pituitary. Show Answer Correct Answer: D) Pituitary. 35. The end of reproductive phase in women called as A) Adults. B) Menarche. C) Menopause. D) Old age. Show Answer Correct Answer: C) Menopause. 36. Adolescence begins around the age of A) 13 years. B) 18 years. C) 25 years. D) 11 years. Show Answer Correct Answer: D) 11 years. 37. Why do adolescents require more energy and nutrients? A) They need to achieve full growth potential. B) They engage in more active physical activities. C) Their bodies are preparing for pubertal changes. D) None of the above. Show Answer Correct Answer: C) Their bodies are preparing for pubertal changes. 38. Choose the option which is the odd one out: A) Increased amount of sweat. B) No development of organs. C) Increase in height. D) Voice change. Show Answer Correct Answer: B) No development of organs. 39. Why is it called Monthly periods A) Because it occurs very month. B) Because it occurs very month as it takes time to make the endometrium. C) Because it occurs very month as it does not take time to make the endometrium. D) None of the above. Show Answer Correct Answer: B) Because it occurs very month as it takes time to make the endometrium. 40. Where in their female reproductive system is fertilisation most likely to take place? A) Fallopian tube. B) Uterus. C) Vagina. D) Cervix. Show Answer Correct Answer: A) Fallopian tube. 41. ..... hormone is also known as stress hormone A) Estrogen. B) Growth. C) Stress. D) Adrenaline. Show Answer Correct Answer: D) Adrenaline. 42. The sac that holds the testicles is A) Testes. B) Ovaries. C) Scrotum. D) Epididymis. Show Answer Correct Answer: C) Scrotum. 43. Adam's apple is prominent in:(a) Boys of any age(b) Adolescent girls(c) Girls of any age(d) Adolescent boys A) C. B) A. C) B. D) D. Show Answer Correct Answer: D) D. 44. The Number of Nuclei Present in a Zygote A) None. B) One. C) Two. D) Three. Show Answer Correct Answer: C) Two. 45. When the sperm contribute a Y-chromosome of the egg (ovum) at fertilization than the zygote would develop into a: A) Female child. B) Male child. C) Either female or male child. D) None of these. Show Answer Correct Answer: B) Male child. 46. Height of an individual depends on: A) The healthy drink that he/she drinks. B) Inheritance and nutrition. C) Nutrition. D) Exercise. Show Answer Correct Answer: B) Inheritance and nutrition. 47. What is the name of the male Gamete? A) Sperm Whale. B) Ova. C) Sperm Cell. D) Tadpole. Show Answer Correct Answer: C) Sperm Cell. 48. Oviparous animals give birth to Young ones. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 49. This type of reproduction involves two parents. A) Asexual reproduction. B) Sexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sexual reproduction. 50. The main changes that occurs in girls during puberty are:(i) Development of Adam's apple. (ii) Development of shrill voice. (iii) Production of testosterone increases. (iv) Hips become broaden and become more curved A) Ii & iv. B) I & II. C) I & IV. D) Iiii. Show Answer Correct Answer: A) Ii & iv. 51. Average span of adolescence is: A) 10 to 16 years. B) 11 to 17 years. C) 13 to 18 years. D) None of the above. Show Answer Correct Answer: C) 13 to 18 years. 52. Which answer choice is NOT a type of asexual reproduction? A) Budding. B) Binary fission. C) Fertilization. D) Fragmentation. Show Answer Correct Answer: C) Fertilization. 53. The age at which the sex hormones and sex gametes begin to be produced and boy or girl become sexually mature is called A) Old age. B) Puberty. C) Childhood. D) Parenthood. Show Answer Correct Answer: B) Puberty. 54. Which glands release their secretions with the help of ducts? A) Endocrine. B) Exocrine. C) Both. D) None. Show Answer Correct Answer: B) Exocrine. 55. The stage of growth and maturity from 2 years to 11 years is called A) Childhood. B) Infancy. C) Puberty. D) Adolescence. Show Answer Correct Answer: A) Childhood. 56. Production of thyroxine requires ..... A) Iodine. B) Magnesium. C) Potassium. D) Sodium. Show Answer Correct Answer: A) Iodine. 57. Thyroxin produced by A) Pituitary gland. B) Adrenal gland. C) Thyroid gland. D) Testes. Show Answer Correct Answer: C) Thyroid gland. 58. The process of drastic change from larva to adult is called ..... A) Development. B) Metamorphosis. C) Syngamy. D) Fertilization. Show Answer Correct Answer: B) Metamorphosis. 59. A Ten-Year-Old Boy Is 125 Cm Tall. If The Present Height Of The Boy Is 78% Of His Full Height, Calculate The Full Height Which The Boy Will Eventually Reach At The End Of Growth Period. A) 150.75. B) 160.25. C) 147.15. D) 163.85. Show Answer Correct Answer: B) 160.25. 60. Your Sister gets her menarche (first mensuration), at that time you are the only one present with her at home. As a Brother/Sister how would you help her. A) Tell her that she is going to die soon. B) I will explain her that it is normal, now you have entered into your puberty and will buy sanitary napkins for her and take care of her. C) Will tell her that now she cannot cook as she has become untouchable. D) Will make fun of her situation. Show Answer Correct Answer: B) I will explain her that it is normal, now you have entered into your puberty and will buy sanitary napkins for her and take care of her. ← PreviousNext →Related QuizzesScience QuizzesClass 8 QuizzesClass 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 1Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 2Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 3Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 4Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 5Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 7 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books