0

Reaching the Age of Adolescence

Attempted 0/15 Correct 0 Score 0

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


Correct Option: D
Explanation:

Mosquito bite does not transmit HIV.

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

  1. Estrogen

  2. Progesterone

  3. Testosterone

  4. Insulin

  5. Thyroxine


Correct Option: C
Explanation:

Testosterone control secondary sexual characteristics in male.

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


Correct Option: B
Explanation:

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 male is heterogametic and produce two types of gamete one with x and other with y.

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.


Correct Option: D
Explanation:

Sweat glands, oil glands and salivary glands are ducted glands.

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.


Correct Option: C
Explanation:

Puberty is characterized by increased activity of sweat and sebaceous glands.

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


Correct Option: D
Explanation:

Increased activity of sweat glands and sebaceous glands causes acne and pimples on the face during puberty.  Increased activity of thyroid and adrenal does not cause acne and pimples.

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


Correct Option: D
Explanation:

Calculation for full height (cm) = Present height cm / % of full height at this age x 100, i.e., 120 / 75 x 100 = 160 cm tall.

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

  1. Trachea

  2. Bronchi

  3. Bronchioles

  4. Larynx.

  5. Thyroid


Correct Option: D
Explanation:

Larynx forms Adams apple.  Thyroid does not form Adams apple.

Deficiency of which of the following hormone cause goitre?

  1. Calcitonin

  2. Adrenalin

  3. Testosterone

  4. Thyroxine

  5. Thymosine


Correct Option: D
Explanation:

Deficiency of thyroxine cause goitre

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


Correct Option: D
Explanation:

Ovum has one One X chromosomes.  Ovum of human does not have Z- Chromosome.

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


Correct Option: C
Explanation:

Adrenalin helps the body to adjust to stress when one is very angry, embarrassed or worried.

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

  1. thymus

  2. thyroid

  3. adrenal

  4. ovary


Correct Option: D
Explanation:

Ovary secretes estrogen.

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


Correct Option: C
Explanation:

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 begins at puberty and is termed as menarche.

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.


Correct Option: C
Explanation:

A father is responsible for the sex of his child because he is heterogametic and can produce two types of gametes; one with a X chromosome and the other with a Y chromosome.

Ram's uncle was suffering from ‘diabetes’ because his pancreas was not producing a hormone in a sufficient quantity. Identify the hormone.

  1. Glucagon

  2. Vasopressin

  3. Thyroxine

  4. Insulin


Correct Option: D
Explanation:

Deficiency of insulin causes diabetes.

- Hide questions