Physical Changes at Puberty

Q.

What is the second messenger in hormones?

Q. Mention five taboos and myths related to the reproductive health. [5 MARKS]

Q.

Mention any two features each that are seen in boys and girls each to distinguish them from each other at puberty.

Q. The table below shows the data on likely heights of boys and girls as they grow in age. Draw graphs showing height and age for both boys and girls on the same graph paper. What conclusions can be drawn from these graphs? [5 MARKS]

Q. Why does our body change when we reach our teens ?

Q.

A person X having curly hair marries a woman Y having straight hair. What can be predicted about the hair type of first child born to this couple?

1. The child will have straight hair

2. The child will have curly hair

3. The child may have either of the two hair types

4. None of these

Q.

List some changes which occur after attainment of sexual maturity in boys.

Q.

What are the changes that happen in boys and girls at puberty physically and mentally?

Q.

Brain releases which hormone to start puberty in our body?

1. GnRH (Gonadotropin-Releasing Hormone)

2. FSH (Follicle-Stimulating Hormone)

3. LH (Luteinizing Hormone)

4. Progesterone

Q. How does the height boys and girls change during puberty?

Q.

What is the most important estrogen hormone?

Q.

Write the full form of IUCD.

Q. The first menstrual cycle at puberty in girls is termed as:

1. Ovulation
2. Menarche
3. Menopause
4. Fertilisation

Q. The first menstrual cycle at puberty in girls is termed as:

1. Menopause
2. Ovulation
3. Fertilisation
4. Menarche

Q. Mention any two features that are seen in boys and girls to distinguish them from each other at puberty.

Q. The first menstrual cycle at puberty in girls is termed as:

1. Menopause
2. Fertilisation
3. Ovulation
4. Menarche

Q. In the mechanism of action of a protein hormone, one of the second messengers is?

1. Cyclic AMP
2. Insulin
3. $T_3$
4. Gastrin

Q. Why do girls grow faster than boys at the age of 12?

1. Girls reach puberty earlier than boys.
2. Boys reach puberty earlier than girls.
3. Girls normally take in more proteins at the age of 12.
4. Boys normally consume less food.

Q. Name any two copper-releasing Intra Uterine Devices(IUDs). List two reasons that make them effective contraceptives.

Q. Function of estrogen is

1. Controls sperm production
2. Controls egg production
3. Controls blood glucose levels
4. Controls general metabolism and growth in body

Q. The first menstrual cycle at puberty in girls is termed as:

1. Menarche
2. Fertilisation
3. Menopause
4. Ovulation

Q. At puberty stage mammary glands develop inside the breasts.

1. True
2. False

Q. What is acne?

Q.

Vasectomy and tubectomy make the persons -

1. Sterile

2. Unable to produce sex hormones

3. Lose their sex drive

4. All of the above

5. None of the above

Q. During puberty, the testes of boys ....... in size.

1. Enlarges
2. Shortens
3. Lengthens
4. Thickens

Q. After attaining the puberty girls develop _____ voice.

1. Low
2. High pitched
3. Deep
4. Low pitched

Q. Development of mammary glands in girls is an example of primary sexual characteristic.

1. False
2. True

Q. Height of a person depends on their

1. Genes
2. Blood
3. Habits
4. None of the above

Q. Development of mammary glands in girls is an example of primary sexual characteristic.

1. False
2. True

Q. What is follicular atresia?