Puberty

Q.

List changes in the body that take place at puberty

Q.

What are the 3 stages of adolescence?

Q.

The process of production of male gametes in humans is_____

1. Spermatogenesis

2. Oogenesis

3. Spermtestogenesis

4. Spermgamogenesis

Q. Question 07 (ii)
Choose the correct option.
Reproductive age in women starts when their

1. menstruation starts.
2. breasts start developing.
3. body weight increases.
4. height increases.

Q.

Why adolescence is a difficult period?

Q.

Write notes on - (a) Adams apple: (b)Secondary sexual characters in girls: (c) Sex determination in an unborn baby:

Q.

When released from the ovary, the human egg contains how many chromosomes?

1. One Y chromosome

2. One X chromosome

3. two X chromosomes

4. XY chromosomes

Q.

Chemical substances produced in the endocrine glands of the body are called

1. Head region

2. Near heart

3. Throat region

4. Gonad region

Q.

What is puberty ? Who attains puberty at an earlier age in human beings : male (boy) or female (girl) ?

Q.

Discuss the problems associated with adolescence.

Q.

Pick up the correct statements about the increase in height during puberty.

i. A sudden increase in height is seen during adolescence due to growth hormones.
ii. Girls grow faster than boys initially during adolescence.
iii. At the end of adolescence, maximum height is reached which is inherited from parents.

1. i and ii

2. ii and iii

3. i and iii

4. i, ii and iii

Q. Give the similar changes taking place in both boys and girls during adolescence.

Q.

I am a 15 years old boy. My sister is 2 years younger to me but is taller than me. How did this happen?

1. My sister has more efficient growth hormones than me

2. Initially girls grow faster than boys during adolescence

3. Can't say

4. I will definitely remain shorter than my sister throughout my life

Q. Question 11
Name the female hormone produced by ovaries that helps in development of mammary glands.

Q.

Name the male hormone responsible for the development of secondary sexual characteristics.

Q. Which one is haploid cell . Both sperm and ovum are haploids . But in the subjective tests only we can can select 1 option. Sometimes it shows the answer sperm and sometimes ovum due to which my only 1 question is wrong in that test as I have done the test two times.

Q.

Unscramble the underlined words in the following sentences:

(a) Reproductive life of a woman lasts from hacreemn to spauoemen.

(b) The development of a caterpillar to an adult butterfly is termed as poommertaissh.

(c) The overgrowth of sumselc in xalnyr leads to the hoarse voice in adolescent boys.

(d) Dannalier helps the body to adjust and fight the stress.

Q.

I am a 15 years old boy with a twin sister. My sister has suddenly grown taller than me. How did this happen?

1. Can't say

2. My sister has more efficient growth hormones than me

3. Initially girls grow faster than boys during adolescence

4. I will definitely remain shorter than my sister throughout my life

Q.

The adolescents are also called as _________.

Q.

Which of the following is a common physical change observed in both girls and boys during puberty?

1. Slow growth

2. Hair growth in various parts of the body

3. Shoulder bones expand

4. Hip bones widen

Q.

The male gamete in the human reproductive system is known as __.

Q.

In human females, an event that reflects onset of reproductive phase is

1. Growth of body

2. Changes in hair pattern

3. Change in voice

4. Menstruation

Q. Define the term-
1) adolescent
2) puberty

Q.

Growth in girls starts and stops earlier than growth in boys.

1. True

2. False

Q. _______________ is a period of few years in which rapid physical; physiological and psychological changes occur resulting in sexual maturity.

1. Adolescence
2. Menstrual cycle
3. Puberty
4. None of the above

Q.

At what age does puberty begin in females?

1. 11 to 12 years.

2. 13 to 14 years.

3. 14 to 18 years.

4. 16 to 18 years.

Q.

Statement 1: Adolescence marks the onset of puberty.
Statement 2: Puberty ends when an adolescent reaches reproductive maturity.

Q.

What is the general age of attaining puberty in females?

1. 11 to 12 years.

2. 13 to 14 years.

3. 14 to 18 years.

4. 16 to 18 years.

Q.

What are the 7 hormones?

Q.

Development of Sex Organs in females is carried out under the influence of __.