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Reaching the Age of Adolescence

Practice test for class viii science

13 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

AIDS is caused by a dangerous virus, HIV. This virus can pass on to a normal person from an infected person by different means. Which of the following is not a means for HIV transmission?

  1. Blood transfusion
  2. Sharing needles
  3. Sharing shaving razors
  4. Mosquito bite
  5. Sexual contact with an infected person
Question 2 Multiple Choice (Single Answer)

Which of the following hormone control secondary sexual characteristics in male?

  1. Estrogen
  2. Progesterone
  3. Testosterone
  4. Insulin
  5. Thyroxine
Question 3 Multiple Choice (Single Answer)

The belief that the mother is responsible for the sex of her baby is completely wrong and to blame her for this is totally unjustified. The reason is __________.

  1. male is homogametic
  2. male is heterogametic
  3. female is homogametic
  4. female is heterogametic
  5. in female ovum has Y chromosome
Question 4 Multiple Choice (Single Answer)

Which of the following group of glands release their secretions through ducts?

  1. Thyroid gland adrenal gland and hypothalamus.
  2. Sweat glands, oil glands and thyroid glands.
  3. Sweat glands, Thyroid glands and salivary glands.
  4. Sweat glands, oil glands and salivary glands.
  5. Thyroid gland, oil glands and salivary glands.
Question 5 Multiple Choice (Single Answer)

Which of the following changes is not associated with puberty?

  1. Increase in height and change in body shape.
  2. Voice change and development of sex organs.
  3. Decreased activity of sweat and sebaceous glands.
  4. Development of sex organs and appearance of secondary sexual characters.
  5. Reaching mental, intellectual and emotional maturity.
Question 6 Multiple Choice (Single Answer)

Increased activity of which of the following glands cause acne and pimples on the face during puberty?

  1. Thyroid and pancrease
  2. Thyroid and thymus
  3. Hypothlamus and pituitary
  4. Sweat glands and sebaceous glands.
  5. Thyroid and adrenal
Question 7 Multiple Choice (Single Answer)

A boy is 9 years old and 120 cm tall. At the end of the growth period his height is likely to be _________.

  1. 170 cm
  2. 180 cm
  3. 150 cm
  4. 160 cm
  5. 155 cm
Question 8 Multiple Choice (Single Answer)

Which of the following part of respiratory system forms Adams apple in male?

  1. Trachea
  2. Bronchi
  3. Bronchioles
  4. Larynx.
  5. Thyroid
Question 9 Multiple Choice (Single Answer)

The sex chromosome present in an unfertilized ovum of human female is ____________.

  1. one Y-Chromosome
  2. two X-chromosome
  3. one X and one Y chromosome
  4. one X chromosomes
  5. one Z Chromosome
Question 10 Multiple Choice (Single Answer)

Which of the following hormones helps the body to adjust to stress when one is very angry, embarrassed or worried?

  1. Insulin
  2. Thyroxine
  3. Adrenalin
  4. Testosterone
Question 11 Multiple Choice (Single Answer)

Development of female secondary sexual characteristics are controlled by estrogen. This hormone is secreted by

  1. thymus
  2. thyroid
  3. adrenal
  4. ovary
Question 12 Multiple Choice (Single Answer)

In the absence of fertilisation, the released egg and the thickened lining of the uterus along with its blood vessels are shed off. This causes bleeding in women, which is called menstruation. The first menstrual flow is termed as

  1. menopause
  2. ovulation
  3. menarche
  4. implantation
Question 13 Multiple Choice (Single Answer)

Which of the following is a correct statement?

  1. A girl becomes pregnant if she looks at boys during menstruation.

  2. A mother is responsible for the sex of her child.

  3. A father is responsible for the sex of his child.

  4. The legal age for marriage is 18 years for girls and boys.
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