Introduction to Sexual Reproduction in Humans

Q.

Explain the importance of reproduction in living organisms.

Q.

What are the 3 reasons cells divide?

Q. What are the steps involved in sexual reproduction in human beings?

Q. Name the process which is important for the continuation of species from generation to generation.

1. Excretion
2. Reproduction
3. Digestion
4. Respiration

Q.

When Do Primordial Germ Cells Move To Develop Gonads?

Q. Is reproduction in animals same as that of humans?

Q. Animals that lay eggs are called:

1. oviparous animals
2. domestic animals
3. viviparous animals
4. herbivorous animals

Q. In sexual reproduction, offspring formed are not identical to the parents.

1. False
2. True

Q. Which among the following is not true about sexual reproduction?

1. Involves two parents
2. Involves fusion of gametes
3. Zygote is formed
4. Offsprings are identical to parents

Q. How many sperms can fertilize one ovum?

1. Two
2. Three
3. Four
4. One

Q. In sexual reproduction, offspring formed are not identical to the parents.

1. True
2. False

Q. What are the steps involved in sexual reproduction in human beings?

Q. In the figure below, identify the parts whose descriptions are given below.
X: The part which contains pollen grains.
Y: The part where the female gamete is formed.
Z: The colourful part of flower.

1. X: Sepals; Y: Ovary; Z: Petals

2. X: Filament; Y: Petals; Z: Anther

3. X: Ovary; Y: Anther; Z: Petals

4. X: Anther; Y: Ovary; Z: Petals

Q.

Give one word for the following:

The organ where sperms are produced.

Q. What are the steps involved in sexual reproduction in human beings?

Q. Which of the following patterns of reproduction involves the exchange of genetic material?

1. Asexual reproduction
2. Sexual reproduction
3. Both A and B
4. None of these

Q.

Which is true for zygote?

1. Presence of urinary bladder

2. Presence of rectum

3. Long vas deferens

4. Requirement of low temperature for spermatogenesis

Q. When the egg is fertilized and gets attached to the wall of uterus, this condition is called ________ or ______.

1. pregnancy
2. gestation
3. menstruation
4. lactation

Q. [A]Given alongside is a diagram of the male reproductive system in humans. Label the parts indicated by numbers 1 to 5, and state their functions.

[B] Describe the human female reproductive system with a labelled diagram.

Q. What are the steps involved in sexual reproduction in human beings?