Reaching the age of adolescence Worksheet-8

Reaching the age of adolescence Worksheet-8

 

True or false:

  1. Adolescence leads to sexual maturity.

  2. The long bones of the arms and the legs elongate during child hood.

  3. In boys, the muscles of the body grow more prominently than in the girls during puberty.

  4. Boys develop larger voice boxes.

  5. Girls have a low pitched voice whereas boys have a high pitch voice.

  6. The excessive secretion of sweat glands and sebaceous glands causes acne and pimples.

  7. Salivary glands release their secretions directly in blood stream.

  8. In girls, the ovaries enlarge and eggs begin to mature during puberty.

  9. Adolescents are more self conscious.

  10. Testes and ovaries are the secondary reproductive organs.

  11. The changes which occur at adolescence are controlled by hormones.

  12. The male hormone or estrogen is released by the testes

  13. Iron builds blood and iron-rich food are good for adolescents.

  14. Adolescents become capable of reproduction when their testes and ovaries begin to produce only hormone not gametes.

  15. HIV can pass on to a normal person from an infected person by sharing the syringes used for injecting drugs.

  16. Implantation of fertilized egg in uterus results in pregnancy.

  17. Shedding of unfertilized egg, thickened wall of uterus and blood from vaginal opening is called menopause.

  18. Menstrual cycle is controlled by hormones.

  19. Menstrual cycle gets completed in 4-5 days.

  20. The belief that the mother is responsible for the sex of her baby is completely wrong.

  21. Metamorphosis in insects is controlled by insect hormones.

 

Answer:

  1. True

  2. False; The long bones of the arms and the legs elongate during puberty.

  3. True

  4. True

  5. False: Girls have a high pitched voice whereas boys have a low pitch voice.

  6. True

  7. False; salivary glands release their secretions through ducts.

  8. True

  9. True

  10. False; Testes and ovaries are the primary reproductive organs.

  11. True

  12. False; The male hormone or testosterone is released by the testes

  13. True

  14. False; Adolescents become capable of reproduction when their testes and ovaries begin to produce gametes.

  15. True

  16. True

  17. False; Shedding of unfertilized egg, thickened wall of uterus and blood from vaginal opening is called menstruation.

  18. True

  19. False; Menstrual cycle completed in 28-30 days.

  20. True

  21. True