Biology

Question 1

Ovaries

Answer 1

Store and release eggs

Question 2

Fallopian tubes

Answer 2

Carry the egg to the uterus,fertilization occurs here

Question 3

Uterus

Answer 3

(Womb) is where the fertilized egg becomes implanted and finds nourishment

Question 4

Cervix

Answer 4

Leads from vagina to the uterus

Question 5

Vagina

Answer 5

Holds the male penis during sexual inter course

Question 6

Ovulation

Answer 6

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

Question 7

Menstruation

Answer 7

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg, if the egg is not fertilized 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 ( day 1-5 ) this is called menstruation or a period

Question 8

The fertile period

Answer 8

These are the days of the menstrual cycle when the woman is most likely to become pregnant

Question 9

Menopause

Answer 9

Signals the end of a females ability to reproduce it happens typically at late 40s to early 50s

Question 10

Testes

Answer 10

Produces sperm

Question 11

Scrotum

Answer 11

Where the testes are

Question 12

Epididymis

Answer 12

Is a coiled tube on the outside of each testis and stores sperm

Question 13

Vas deferens

Answer 13

Sperm duct brings sperm from testes to penis

Question 14

Seminal vesicles, prostate gland Cowper’s gland

Answer 14

Produce seminal fluid which mixes with sperm to form semen, and allows the sperm to swim

Question 15

The penis

Answer 15

Enters the vagina producing sperm

Question 16

Puberty

Answer 16

Describes when the body starts becoming sexually mature

Question 17

Female puberty

Answer 17

In females when the sex hormones ( estrogen and progesterone ) and released the breasts develop hips widen and hair begins to grow on the body
The first egg released in the ovaries which lead to the first period occurring
An egg will be released every month until the menopause

Question 18

Fertilision

Answer 18

If an egg is present in the Fallopian tube and a couple have sexual inter courses, then one of the sperm cells may fuse with it

• the nuclei of the sperm And egg fuse together to form a fertilized egg
• the women is now pregnant

Question 19

Embryo

Answer 19

The fertilized egg then divides a number of times and the tiny group of cells moves down the Fallopian tube to the uterus
- this group of cells settles into the settles the lining of the uterus and continues to divide up

Question 20

Zygote

Answer 20

Egg and sperm fuse to form a single

Question 21

Embryo

Answer 21

Cell division occurs and growth

Question 22

Foetus

Answer 22

Embryo, which attaches to the lining of the uterus (implantation) grows more, and after 8 weeks looks like a human

Question 23

Pregnancy

Answer 23

The average length of a human pregnancy is 40 weeks

Question 24

Umbilical cord

Answer 24

The tube joins the embryo to the placenta

Question 25

Placenta

Answer 25

Is rich in blood cells
The placenta is not part of the mother it develops as the y baby does it helps get rid of the babies waist and comes out when the mother gives birth

Question 26

Labor

Answer 26

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

Question 27

Waters break

Answer 27

Waters break the bag of amniotic fluids bursts and Firth contractions push the baby out usually head first, the the vagina

Question 28

After birth

Answer 28

The umbilical cord is cut and the placenta comes out after

Question 29

Lactation

Answer 29

The production of breast milk

Question 30

Colostrum

Answer 30

The first the three days of milk is called colostrum- very nutritious, and helps protect the baby from infection

Question 31

Family planning

Answer 31

To control the number of children you want have you need to control the number of times fertilization takes place

Question 32

Natural methods of conception

Answer 32

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

Question 33

Artificial

Answer 33

Prevent the sperm and egg meeting
A condom prevents sperm going into the vagina
Another is the contraceptive pill which prevents ovulation
They are not a 100 % reliable

Question 34

Inherited characteristics

Answer 34

Many physical characteristics such as eye colour and shape of ears were inherited from your parents. The instructions for these inherited characteristics were carried in the two cells that made you the egg and sperm

Question 35

Chromosomes and genes

Answer 35

he nucleus of each sex cell (gamete) contains 23 thread like structures called

Question 36

Chromosomes

Answer 36

Chromosomes are made of protein + DNA

Question 37

Genes

Answer 37

are chemicals found on chromosomes that pass on information from parents to children

Question 38

DNA

Answer 38

Deoxyribonucleic acid

Taxonomy – is the science of classifying organisms.

Question 39

Classification

Answer 39

is the placing of organisms into groups, based on similar characteristics.This simplifies the study of organisms and allow scientists to communicate with each other. The basic unit of classification is the species.

Question 40

A species

Answer 40

is a group of organisms that are capable of interbreeding to produce fertile offspring. (Liger = sterile offspring of a male lion and a female tiger) (A mule is the sterile offspring of a male donkey and a female horse)

Question 41

Heredity

Answer 41

is the handing down of certain traits from parents to offspring through genes e.g. length of nose.

Question 42

Natural selection

Answer 42

is the process by which the members of a species who are best suited to their environment are most likely to survive and reproduce.

Question 43

Natural selection

Answer 43

is the process by which the members of a species who are best suited to their environment are most likely to survive and reproduce.