Human Fertilisation

Human Fertilisation

Reproduction

Multiple Select

Which of these changes happen to both boys and girls during puberty?

• Hair growth

• Voice deepens

• Acne (spots)

• Growth spurt

• Breasts grow

Multiple Choice

What is the female sex cell called?

• Sperm

• Pollen

• Egg

• Ovary

Multiple Choice

Where does a baby develop in the female reproductive system?

• Vagina

• Cervix

• Oviduct

• Uterus

Multiple Choice

True or false: sperm cells can live up to 7 days inside a woman's body

• True

• False

Learning Objectives

• Describing the role of the sperm and egg cell in fertilisation

• Describe the process of fertilisation

• Explain how sexual intercourse can lead to fertilisation

THINK: What body part is number 1?

Multiple Choice

What body part is number 1?

• Ovary

• Oviduct

• Uterus

• Cervix

THINK: What body part is number 3?

Multiple Choice

What body part is number 3?

• Vagina

• Uterus

• Oviduct

• Ovary

THINK: What body part is number 5?

Multiple Choice

What body part is number 5?

• Vagina

• Cervix

• Uterus

• Ovary

Open Ended

What do you already know about how a baby is made?

Make sure you have completed your answer before you hit enter!

Human Fertilisation

To put it simply, it's an 'egg and sperm race'!

Keywords

Fertilisation occurs when a male gamete joins with a female gamete

Each carry a range of DNA (genetic material) from the parent

A different sperm cell would give a baby with different characteristics

A zygote is the name for a fertilised egg cell

Fertilisation: Step 1

Every month a woman releases an egg from her ovary

That egg travels down the oviduct

Fertilisation: Step 2

If sperm has been released into the vagina, it will start to swim up through the cervix and uterus and up to the oviduct

Lots of sperm cells are released because most of them will die or go the wrong way!

Fertilisation: Step 3

The sperm cells will race to be the first one to get to the egg in the oviduct

Fertilisation: Step 4

They will race to be the first one to digest the protective jelly coating around the egg and get to the nucleus

Only one sperm cell will be able to fertilise an egg!

Fertilisation: Step 5

The fertilised egg will travel down into the uterus and implant in the lining of the uterus

This lining is full of blood vessels to give the growing zygote lots of nutrients

Fertilisation: Step 6

The cells will divide very quickly...

Fertilisation: Step 7

...and soon develop into a baby!

Multiple Choice

Where is the egg released from?

• Oviduct

• Testes

• Ovary

• Urethra

Multiple Choice

Where does fertilisation of the egg occur?

• Vagina

• Uterus

• Ovary

• Oviduct

Multiple Choice

A fertilised egg is known as:

• an embryo

• a zygote

• a sperm cell

• an ovary

Multiple Choice

What is fertilisation?

• When an egg implants into the uterus

• When sperm is released into the vagina

• When an egg is released from an ovary

• When a male sex cell joins with a female sex cell

Open Ended

Do you have any questions?

Take your time!