This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 10 Reaching The Age Of Adolescence – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 10 Reaching The Age Of Adolescence Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Chromosomes are present in A) Cells. B) Nucleus of the cells. C) None. D) Everywhere. Show Answer Correct Answer: B) Nucleus of the cells. 2. Which part is also known as 'adam's apple" ? A) Hands. B) Legs. C) Voice. D) Voice box. Show Answer Correct Answer: D) Voice box. 3. Female gamete in human is: A) Ovum. B) Egg cell. C) Both of the above. D) None of the above. Show Answer Correct Answer: C) Both of the above. 4. At what age does a boy reach its height of 84% A) 12. B) 13. C) 10. D) 11. Show Answer Correct Answer: A) 12. 5. Statement 1:Sweat glands, salivary glands and oil glands do not release their secretions directly into the blood. Statement 2:These glands do not have ducts. A) Both the statements are correct. B) Only statement 2 is correct. C) Both the statements are incorrect. D) Only statement 1 is correct. Show Answer Correct Answer: D) Only statement 1 is correct. 6. What is the stoppage of menstruation called? A) Menarche. B) Menopause. C) Gametes. D) Insulin. Show Answer Correct Answer: B) Menopause. 7. Gametogensis is the production of A) Gametes. B) Zygote. C) Cell. D) None of the above. Show Answer Correct Answer: A) Gametes. 8. The human body undergoes several changes during adolescence. These changes mark the onset of A) Puberty. B) Prematurity. C) Post adolescence. D) Ageing. Show Answer Correct Answer: A) Puberty. 9. Which gland is known as master Gland? A) Adrenal Gland. B) Pancreas. C) Pituitariy Gland. D) Hypothalamus. Show Answer Correct Answer: C) Pituitariy Gland. 10. Deficiency of Thyroxine hormone causes A) Scurvy. B) Beri-beri. C) Goitre. D) Rickets. Show Answer Correct Answer: C) Goitre. 11. The Function Of The Vas Deferens A) Transport the sperm to the urethra. B) Stores the sperm and secretes it to the duct in ejaculation. C) Produce testosterone and sperm. D) To keep the temperature of the testes slightly lower than that of the rest of the body. Show Answer Correct Answer: A) Transport the sperm to the urethra. 12. Metamorphosis in insects is controlled by ..... A) Insect Harmone. B) Thyroxine. C) Growth harmone. D) Adrenaline. Show Answer Correct Answer: A) Insect Harmone. 13. Which of the following glands secrete oil? A) Thyroid gland. B) Pituitary gland. C) Sebaceous gland. D) Endocrine gland. Show Answer Correct Answer: C) Sebaceous gland. 14. Hormones are secreted from endocrine gland. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Why is the marriage for boys and girls fixed at 21 and 18 respectively? A) Because they are not physically and mentally mature till that age. B) Just for population control. C) To please the parents. D) So that they concentrate in studies. Show Answer Correct Answer: A) Because they are not physically and mentally mature till that age. 16. A female has ..... chromosomes A) XY. B) XX. C) Yyx. D) Xyx. Show Answer Correct Answer: B) XX. 17. A Zygote is formed as a result of Fertilization. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Which hormone is called the emergency hormone? A) Serotonin. B) Adrenaline. C) Insulin. D) Thyroxine. Show Answer Correct Answer: B) Adrenaline. 19. Which combination results to female? A) Xx. B) Yy. C) Xy. D) None of the above. Show Answer Correct Answer: A) Xx. 20. The age at which boys and girls start producing gametes is called A) Young age. B) Adulthood. C) Puberty. D) Maturity. Show Answer Correct Answer: C) Puberty. 21. Girls grow faster than by about ..... years of age A) 18. B) 10. C) 25. D) 15. Show Answer Correct Answer: A) 18. 22. Ductless glands are also known as; A) Exocrine glands. B) Endocrine glands. C) Target sites. D) Pubic glands. Show Answer Correct Answer: B) Endocrine glands. 23. The age at which a boy or girl becomes sexually mature to reproduce is called ..... A) Adolescence. B) Adulthood. C) Teenager. D) Puberty. Show Answer Correct Answer: A) Adolescence. 24. The menstrual cycle happens in women every A) 10 days. B) 28 to 30 days. C) 45 to 50 days. D) None. Show Answer Correct Answer: B) 28 to 30 days. 25. Which of the following hormones controls the menstrual cycle, the ovulation process and the development of the uterus in the females? A) Estrogen. B) Progesterone. C) Testosterone. D) Both (A) and (B). Show Answer Correct Answer: D) Both (A) and (B). 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