Biology

Question 1

Ovaries

Answer 1

Store and release eggs

Question 2

Fallopian tubes

Answer 2

Carry’s the egg to the uterus,fertilisation occurs her

Question 3

Uterus

Answer 3

Is where the fertilised egg become implanted and finds nourishment

Question 4

Cervix

Answer 4

Leads from the vagina to the uterus

Question 5

Vagina

Answer 5

Holds the male penis during sexual intercourse

Question 6

Ovulation

Answer 6

An egg is released from the ovary an average of every 28 days

Question 7

Mensturation

Answer 7

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg.if the egg is not fertilised by a sperm the thickened uterus lining is not needed and breaks away.The lining and a small amount of blood pass out through the vagina.

Question 8

Fertile period

Answer 8

These are the days of the menstrual cycle when the woman is most likely to become pregnant,intercourse 2 or 3 days before during or after ovulation could lead to fertilisation because sperm cells can survive for this long.

Question 9

Pause to menstrual cycle

Answer 9

If an egg is fertilised,the menstrual cycle is paused for the duration of pregnancy.The first sign of pregnancy is often that menstruation does not happen.

Question 10

Ovulation

Answer 10

An egg is released from the ovary an average of every 28 days

Question 11

Mensturation

Answer 11

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg.if the egg is not fertilised by a sperm the thickened uterus lining is not needed and breaks away.The lining and a small amount of blood pass out through the vagina.

Question 12

Ovulation

Answer 12

An egg is released from the ovary an average of every 28 days

Question 13

Mensturation

Answer 13

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg.if the egg is not fertilised by a sperm the thickened uterus lining is not needed and breaks away.The lining and a small amount of blood pass out through the vagina.

Question 14

Menopause

Answer 14

Signals the end of a females ability to reproduce and also the end of her menstrual cycle.It happens at different ages for different people,typically in the late 40’s to early 50’s

Question 15

Testes

Answer 15

Produce sperm

Question 16

Scrotum

Answer 16

Is where the testes are,it is located outside the body to ensure the temperature Is lower than body temperature for healthy sperm

Question 17

Epididymis

Answer 17

Is a coiled tube on the outside of each testis that stores sperm and allows them to mature fully

Question 18

Vas deferens

Answer 18

Brings the sperm from the testes to the penis

Question 19

Seminal vesicles,prostate gland and cowpers gland

Answer 19

Produce seminal fluid which mixes with sperm to form semen,It nourishes the sperm and allow them to swim

Question 20

Penis

Answer 20

Enters the female and ejaculates semen

Question 21

Puberty

Answer 21

Describes when the body starts becoming sexually mature (reproductive organs develop).It normally happens between the ages of 10 and 16

Question 22

Male puberty

Answer 22

In males,sex hormones (testosterone)are released causing the voice to deepen,hair grows around sex organs,face,chest and underarms,the testes and penis grow bigger and start to produce sperm

Question 23

Female puberty

Answer 23

In females when the sex hormones (oestrogen and progesterone)are released the breasts develop,hips widen,and hair begins to grow on the body.The first egg is released from the ovaries which leads to the first period occurring.An egg will be released every month until the menopause

Question 24

Fertilisation

Answer 24

If an egg is present in the Fallopian tube,and a couple have sexual intercourse,then one of the sperm cells may fuse with it,the nuclei of the sperm and egg fuse together to form a fertilised egg.The woman is now pregnant.

Question 25

Embryo

Answer 25

The fertilised egg then divides a number of times and the tiny group of cells moves down the Fallopian tubes to the uterus.This group of cells settles into the lining of the uterus and continues to divide form an embryo.

Question 26

Zygote->Embryo->Foetus

Answer 26

``` Egg and sperm fuse to form a single ->Zygote Cell division occurs and growth ->Embyro,which attaches to the lining of the uterus(implantation)grows more,and after 8 weeks looks like a human ->Foetus ```

Question 27

Pregnancy

Answer 27

The average length of a human pregnancy is 40 weeks

Question 28

Amniotic fluid

Answer 28

As the embryo develops in the uterus it is protected inside a bag of fluid called amniotic fluid,this fluid provides a cushion for the embryo.

Question 29

Umbilical cord

Answer 29

A tube called the umbilical cord joins the embryo to the placenta

Question 30

Placenta

Answer 30

The placenta is rich In blow vessels,it is here at the placenta that food and oxygen from the mothers blood pass into the baby’s blood,also wastes such as carbon dioxide pass from the baby’s blood into the mothers

Question 31

Labour

Answer 31

The birth of a baby begins when the uterus muscles start to contract

Question 32

Waters break

Answer 32

The bag of amniotic fluid bursts and further contractions push the baby out usually head fist through the vagina

Question 33

Afterbirth

Answer 33

The umbilical cord is cut and the placenta come out after

Question 34

Lactation

Answer 34

The mother may choose to breastfeed the infant,the production of breast milk is called lactation

Question 35

Colostrum

Answer 35

The first 3 days of milk is called colostrum very nutritious and helps protect the baby from infection.

Question 36

Family planning

Answer 36

To control the number of children you have You Ned to control the number of times fertilisation takes place

Question 37

Natural methods of contraception

Answer 37

Aim to detect the day ovulation takes place and avoid intercourse during the fertile period

Question 38

Artificial methods of contraception

Answer 38

Prevent the sperm and egg meeting,an example of this is a condom which prevents sperm entering the vagina,another example is the contracteptive pill which prevents ovulation,it is important to realise no method is 100% reliable