Reproduction 01
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Reproduction 01

A fascinating way to revise about living things. How does the human reproductive system work?

Aged between 11 and 14? This quiz is especially for you.

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This KS3 Science quiz takes a look at reproduction. If egg and sperm are mentioned in the same breath, chances are the conversation is about reproduction. Reproduction allows all living things to produce more of their kind. The reproductive system is a system of organs within an organism which work together for the purpose of reproduction. Humans are mammals and therefore have similar reproductive organs to other mammals like cats, elephants and polar bears. The way the reproductive system of each species works is slightly different to all other species, so at KS3, we focus on how our own reproductive system functions.

The main organs of the female human reproductive system are the ovaries, oviducts (fallopian tubes), uterus (commonly called the womb) and the vagina.

Once a month, changes in the hormones in a woman's body causes an egg to be released from the ovaries. At the same time, the lining of the uterus thickens. When the egg reaches the uterus, if it has been fertilised, it will embed in the uterus lining and develop into a baby. If it is not fertilised, it will pass out of the body through the vagina, together with the lining of the uterus and the whole cycle begins again.

The life support system for a baby is in:
the ovary
the oviduct
the uterus
the vagina
It is called the placenta
In the female reproductive system, an egg is released monthly from which organ?
An ovary
The oviduct
The uterus
The vagina
A female human is born with a limited supply of eggs
Which of the following is NOT part of the female reproductive system?
These are part of the male reproductive system
Choose the correct order for the changes in the uterus wall which occur every month in a fertile woman.
Egg is released, uterus stays thick, lining breaks down, uterus wall thickens
Egg is released, uterus wall thickens, stays thick, lining breaks down
Uterus lining thickens, stays thick, lining breaks down, egg is released
Uterus wall thickens, egg is released, uterus lining stays thick, uterus lining breaks down
This is controlled by hormones that circulate in the bloodstream
Which of the following is NOT part of the male reproductive system?
Sperm duct
Eggs pass through this organ from the ovary to the uterus
When sexual intercourse takes place:
sperm are released into the ovary
sperm are released into the oviduct
sperm are released into the uterus
sperm are released into the vagina
From there, they 'swim' through the uterus into the oviducts. Most of them die on the way and only one can fertilise an egg cell
In the male reproductive system sperm are produced:
in the penis
in the sperm duct
in the testes
in the urethra
Sperm cells are very tiny compared to an egg cell but they have a sort of tail that enables them to travel from the vagina to the oviduct
In the male reproductive system the urethra carries:
just sperm
just urine
sperm or urine
neither sperm nor urine
The urethra carries sperm or urine, but not at the same time
Fertilisation of an egg occurs in:
the ovary
the oviduct
the uterus
the vagina
The oviduct is also called the fallopian tube
Choose the correct order leading to a fertilised egg attaching itself to the uterus wall.
Cell division, ovulation, fertilisation, implantation
Fertilisation, cell division, implantation, ovulation
Implantation, cell division, ovulation, fertilisation
Ovulation, fertilisation, cell division, implantation
If you are not sure what each of these scientific terms mean, look them up as soon as possible
You can find more about this topic by visiting BBC Bitesize - Reproduction

Author:  Sue Davison

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