Development of Sex Organs

Q.

What is an embryo?

Q.

What is the scientific name of sperm?

Q. Short note on secondary sexual character

Q. Briefly explain how the voice changes in boys and girls during puberty.

Q. Development of mammary gland is a secondary sexual characteristic of adolescence.

1. True
2. False

Q.

The female gametes are called ________.

Q.

Write one physical and emotional change each that occur during the adolescence?

Q.

The zygote divides repeatedly to form an ______.

Q. S
why does boys get Adams apple when they are adolascent

Q.

When an adolescent reaches reproductive maturity, ______ ends.

Q.

The first cell of a living organism is an embryo.

1. True
2. False

Q.

What is the other name given to multiple fission?

Q. Which of the following is not one of the changes during puberty?

1. Change in skin colour
2. Growth of voice box
3. Change in shoulder size
4. Increase in height

Q. Which among the following is the change seen in girls during puberty?

1. Broader shoulders
2. Breast development
3. Cracking of voice
4. Growth of facial hairs

Q. Adam's apple develops in a/an___.

1. adolescent girl
2. boy of any age group
3. girl of any age group
4. adolescent boy

Q. Find the correct set of differences for boys and girls during puberty from the following table

Boys	Girls
A. Larynx does not grow much	Larynx begins to grow very big
B. Voice box grows to form Adam's apple	No Adam's apple formation
C. No cracking of voice	Cracking of voice takes place
D. Boys have a high pitched voice	Girls have a deep voice

1. A
2. D
3. C
4. B

Q.

________, __________ and ___________ are the male reproductive organs in humans.

Q. Teenagers get acne and pimples on their face due to increased secretion of ________ and ________.

1. sweat; sebum
2. oil; water
3. sebum; water
4. sweat; water

Q.

Why does larynx does not develop in girls

Q.

Find the correct set of differences for boys and girls during puberty from the following table.
$\begin{array}{cc}\text{Boys}& \text{Girls}\\ \text{A. Larynx does not grow much}& \text{Larynx begins to grow very big}\\ \text{B. Voice box grows to form Adam's apple}& \text{No Adam's apple formation}\\ \text{C. No cracking of voice}& \text{Cracking of voice takes place}\\ \text{D. Boys have a high pitched voice}& \text{Girls have a deep voice}\end{array}$

1. A

2. C

3. B

4. D

Q. Which of the following is the secondary sexual characteristic in females?

1. Growth of Adam's apple
2. Hips become wider
3. Voice becomes hoarse
4. Growth of hairs on chest

Q.

Name the following:

Splitting of a unicellular organism to form two organisms.

Q. Briefly explain how the voice changes in boys and girls during puberty.

Q.

Menstruation begins at the age _______ and stops after_________.

Q. Identify the incorrect statement with respect to physical changes that occur in boys during puberty.

1. Increase in height
2. Develop Adam's apple
3. Widening of waists
4. Deeper voices

Q. Find the correct set of differences for boys and girls during puberty from the following table

Boys	Girls
A. Larynx does not grow much	Larynx begins to grow very big
B. Voice box grows to form Adam's apple	No Adam's apple formation
C. No cracking of voice	Cracking of voice takes place
D. Boys have a high pitched voice	Girls have a deep voice

1. B
2. D
3. A
4. C

Q.

Along with physical changes adolescence is also a time for ________changes.

Q. ______ is the process by which a male and female gamete fuse together to form a ______.

A) Fertilisation, embryo
B) Fertilisation, zygote
C) Embryogenesis, zygote
D) Implantation, embryo

Q. Find the correct set of differences for boys and girls during puberty from the following table

Boys	Girls
A. Larynx does not grow much	Larynx begins to grow very big
B. Voice box grows to form Adam's apple	No Adam's apple formation
C. No cracking of voice	Cracking of voice takes place
D. Boys have a high pitched voice	Girls have a deep voice

1. A
2. B
3. C
4. D

Q. Identify the incorrect statement with respect to physical changes that occur in boys during puberty.

1. Increase in height
2. Develop Adam's apple
3. Widening of waists
4. Deeper voices