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Year 7 - Unit 4B
Reproduction
Question | Answer |
---|---|
How many parents are needed for sexual reproduction? | Two |
How many parents are needed for Asexual reproduction? | One |
Name the two gametes. | Sperm cell and Egg cell |
What is an unborn baby called? | Foetus |
What is menstruation? | The loss of blood and tissue from the lining of the uterus through the vagina. (Also known as 'period') |
Name the female gamete. | Egg cell (Ova) |
Name the male gamete. | Sperm cell |
What is the name given to the organs and tissues used for reproduction? | Reproductive system |
What is ovulation? | The process of releasing an egg from the Ovary. |
What is the name of the tube that leads from the Ovary to the Uterus? | Oviduct or Fallopian tube |
Which organ produces the male sex cell? | Testes |
Where does the Foetus develop? | In the Uterus |
What is fertilisation? | When the nucleus of a Sperm cell and Egg cell join. |
What is a Hormone? | A chemical messenger produced in the Glands. |
On which day of the menstrual cycle is an Egg cell released? | Day 14 |
How long does a pregnancy last? | Normally for 9 months |
How long is the menstrual cycle? | 28 days |
What happens between days 1-5 of the menstrual cycle? | The uterus comes away and exits through the Vagina as blood (the woman has a Period). |
How much blood is lost in a single period? | 35 milliliters |
What happens between days 5 - 13 of the menstrual cycle? | The lining of the uterus begins to fill up. |
How long does it take for the Egg cell to travel down the fallopian tube to the uterus? | around 3 days |
What happens during days 18-28 of the menstrual cycle if the Egg cell was not fertilised? | The lining of the uterus begins to break down. |
What is contraception used for? | Contraception is a method of preventing pregnancy from sexual intercourse. |
Which methods of contraception will protects against STI's? | Only Condoms and Female Condoms |
Why does the lining of the Uterus build up before an egg is released? | So that the egg cell may implant and develop |