Lesson T1.5.1

T1.5.1 Human reproduction Quiz: KS3 Biology, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson T1.5.1, Human reproduction: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 1: Structure and function of living organisms, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. Where are sperm produced in the male reproductive system?

    • The ovaries
    • The testes
    • The prostate
    • The uterus

  2. Where are eggs produced in the female reproductive system?

    • The uterus
    • The testes
    • The ovaries
    • The vagina

  3. Where does fertilisation usually take place in the female body?

    • In the placenta
    • In the uterus lining only
    • In the oviduct
    • In the vagina

  4. Where does a fertilised egg implant and develop?

    • In the wall of the uterus
    • In the testes
    • In the cervix
    • In the ovaries

  5. What is the function of the placenta?

    • To pass oxygen and nutrients to the foetus and remove waste
    • To produce sperm and transport them to the uterus
    • To control the menstrual cycle and release hormones
    • To store eggs until they are ready to be fertilised

  6. How long does a typical human pregnancy, or gestation, last?

    • About 9 months, around 40 weeks
    • About 6 weeks
    • About 3 months
    • About 2 years

  7. Which structure links the foetus to the placenta?

    • Oviduct
    • Scrotum
    • Umbilical cord
    • Vagina

  8. What is a gamete?

    • A type of blood cell
    • A hormone that controls growth
    • A type of muscle tissue
    • A sex cell, such as a sperm or an egg

  9. Which two gametes join during fertilisation?

    • Egg and red blood cell
    • Two egg cells
    • Sperm and skin cell
    • Sperm and egg

  10. Which part of the female reproductive system receives the sperm during sex?

    • Testis
    • Vagina
    • Ovary
    • Scrotum

  11. What is the function of the sperm ducts?

    • To produce eggs
    • To support the placenta
    • To carry sperm from the testes
    • To hold the foetus

  12. What happens during the menstrual cycle?

    • The placenta forms each month and is shed with the lining of the womb
    • Sperm are produced and stored in the uterus ready for each month
    • The egg is fertilised in the uterus and implants that same day
    • The lining of the uterus is built up and then shed if no egg is fertilised

  13. Roughly how long is a typical menstrual cycle?

    • About 365 days
    • About 7 days
    • About 90 days
    • About 28 days

  14. Which part of the menstrual cycle is the period when the uterus lining is shed?

    • Gestation
    • Menstruation
    • Implantation
    • Fertilisation

  15. Which substance can pass through the placenta from mother to foetus?

    • Bacteria
    • Red blood cells from the mother
    • Sperm cells
    • Oxygen

  16. How can a mother's smoking affect the foetus?

    • Harmful chemicals pass through the placenta and can reduce foetal growth
    • Smoke is blocked completely by the placenta before reaching the foetus
    • Smoke makes the placenta shrink and stops it working properly
    • Smoke increases the foetus's oxygen supply and helps it grow

  17. A pregnant woman drinks alcohol. Why might this affect her baby?

    • Alcohol can pass through the placenta and affect the foetus
    • Alcohol is absorbed only by the oviduct and the cervix
    • Alcohol is kept out of the placenta by the uterus lining
    • Alcohol helps the placenta make sperm for the foetus

  18. What is the name of the male gamete?

    • Embryo
    • Zygote
    • Egg
    • Sperm

  19. Why does a fertilised egg have a full set of chromosomes from two parents?

    • Chromosomes are created during gestation in the uterus lining
    • Each gamete contributes half the chromosomes, so the zygote has a full set
    • The sperm contains all the chromosomes and the egg contributes none
    • The egg contains all the chromosomes and the sperm contributes none

  20. Which organ is the site where a foetus develops during pregnancy?

    • The oviduct
    • The uterus
    • The testes
    • The prostate

All KS3 Biology quizzes