Science.

Question 1

What is downsydrome

Answer 1

problems with chromosomes/genes they have 47 chromosomes in each nucleus

Question 2

Down syndrome’s get a test called a?

Answer 2

karyotype

Question 3

If 2 alleles are the same as eachother they are?

Answer 3

Homozygous

Question 4

If 2 alleles are different they are?

Answer 4

Heterozygous

Question 5

genetic screening is?

Answer 5

Testing people for allele/condition

Question 6

why do ladies refuse the amniocentesis test?

Answer 6

It causes risk of miscarriage

Question 7

Advantage of blood test.

Answer 7

Lower risk of miscarriage

Question 8

Disadvantage of blood test

Answer 8

Less accurate result

Question 9

Genetic engineering is?

Answer 9

Modification of an organisms genome

Question 10

Where is insulin produced?

Answer 10

pancreas

Question 11

What are receptors/efforters are linked by a?

Answer 11

co- ordinater

Question 12

What are the 2 co-ordinaters?

Answer 12

brain or spinal cord

Question 13

Nerve cells are also known as?

Answer 13

Neurones

Question 14

Reflex actions

Answer 14

don’t involve any time to think bc they don’t involve brain

Question 15

Reflex reactions…

Answer 15

By pass brain for extra speed.

Question 16

3 things reflex actions have in common…

Answer 16

occur quickly. automatic. Don’t involve thinking.

Question 17

Sensory neurone…

Answer 17

carries impulses from receptors to CNS

Question 18

association neurone…

Answer 18

connects sensory with motor neurone.

Question 19

motor neurone…

Answer 19

carries impulses from CNS the an effector.

Question 20

what are the gaps called?

Answer 20

synapse

Question 21

hormones are…

Answer 21

chemical.

Question 22

hormones are produced by?

Answer 22

Glands

Question 23

how do they travel around the body?

Answer 23

in the blood

Question 24

Eg of a hormone?

Answer 24

insulin

Question 25

advantage/ disadvantage of insulin

Answer 25

A) quicker. Less risk of allergy to insulin. D) some people have ethical issues.

Question 26

Recessive…

Answer 26

allele that shows if 2 are present

Question 27

Type 1 diabetes is?

Answer 27

genetic inherited disease

Question 28

Allele is?

Answer 28

form of gene which appears

Question 29

dominant is?

Answer 29

overrides allele if genotype is heterozygous

Question 30

diabetes is treated by?

Answer 30

insulin

Question 31

what does amniotic fluid do?

Answer 31

cushions foetus

Question 32

what causes cystic fibrosis?

Answer 32

mutation

Question 33

shape of DNA

Answer 33

double helix

Question 34

Diabetes is…

Answer 34

if insulin no longer works to lower blood glucose levels

Question 35

symptoms of diabetes..

Answer 35

tired, thirst, glucose in urine

Question 36

type 1 diabetes…

Answer 36

usually begins in children, pancreas stop producing insulin, insulin taking as medication throughout life.

Question 37

type 2 diabetes…

Answer 37

Occurs in older people, Linked to lack of exercise, can be controlled by medication.

Question 38

if diabetes isn’t treated properly you can be effected by:

Answer 38

eye damage, kidney damage, heart disease, strokes.

Question 39

Plants r left on windowsills because

Answer 39

the plant will receive more light meaning more photosynthesis and plant will grow more.

Question 40

auxin is…

Answer 40

growing hormone. produced in growing shoot tips of plant.

Question 41

Male sex cell

Answer 41

sperm cell

Question 42

Female sex cell

Answer 42

egg

Question 43

function of testes?

Answer 43

produce sperm

Question 44

scrotum?

Answer 44

Sac to protect testes

Question 45

sperm ducts

Answer 45

carry sperm to urethra

Question 46

prostate gland

Answer 46

allows travelling of sperm to feed egg

Question 47

Ovaries.

Answer 47

Produce eggs

Question 48

oviducts

Answer 48

transports eggs to ovaries

Question 49

uterus

Answer 49

supports development of fertilised egg

Question 50

Cervix

Answer 50

Controls opening of uterus

Question 51

Fertilisation takes place in the…

Answer 51

Oviducts.

Question 52

Amnion…

Answer 52

sac which contains amniotic fluid

Question 53

baby is ready to be born after…

Answer 53

40 weeks

Question 54

what is respiration

Answer 54

process that releases energy from food in cells

Question 55

what is exothermic?

Answer 55

chemical reaction which releases energy (heat)

Question 56

word equation for respiration..

Answer 56

glucose+ oxygen > carbon dioxide+ water+ energy

Question 57

Symbol equation…

Answer 57

C6 H12 O6+ 6O2 > 6CO2+ 6H20+ energy

Question 58

cancer is…

Answer 58

uncontrolled cell division caused by damage to genes

Question 59

what is phototropism?

Answer 59

plant growth response, plant stems growing in direction of light

Question 60

Progesterone

Answer 60

prepares uterus for pregnancy.

Question 61

contraception is..

Answer 61

stops possibility of pregnancy when having sex.

Question 62

3 types of contraception

Answer 62

chemical, surgical and mechanical(physical)

Question 63

condom…

Answer 63

acts like a barrier stopping sperm from entering woman

Question 64

Variation is…

Answer 64

differences between people or living things

Question 65

continuous…

Answer 65

data can’t be set into groups clearly usually represented in histogram.

Question 66

discontinuous…

Answer 66

data can be put in groups represented using a bar chart

Question 67

Causes of variation…

Answer 67

our genes/environment

Question 68

who was the famous naturalist?

Answer 68

Charles darwin

Question 69

evolution can…

Answer 69

lead to formation of new species

Question 70

what are fossils?

Answer 70

remains of living organisms

Question 71

what’s extinct?

Answer 71

there’s no living examples left

Question 72

reasons of extinction…

Answer 72

climate change. hunting my humans/animals Loss of habitat

Question 73

what is endangered species?

Answer 73

animals at risk of becoming extinct

Question 74

communicable disease…

Answer 74

can be passed from 1 organism to another.

Question 75

what is communicable disease caused by?

Answer 75

bacteria, fungi, virus

Question 76

what does the skin do against microorganisms?

Answer 76

acts as a barrier to stop them getting in

Question 77

what does blood clotting do against microorganisms?

Answer 77

prevents them getting through cuts.

Question 78

what are antibodies?

Answer 78

chemical produced by one type of white blood cell (lymphocytes)

Question 79

what are the 2 types of immunity?

Answer 79

active and passive.

Question 80

what are medicines?

Answer 80

drugs to help you feel better or reduce pain.

Question 81

what are antibiotics?

Answer 81

chemicals produced by fungi to kill bacteria.

Question 82

antibiotic resistance is a problem in hospitals because?

Answer 82

many people in hospitals are alreadly ill. Patients may have open wounds. Many antibiotics are used in hospitals

Question 83

how can u stop antibiotic resistance from spreading?

Answer 83

isolate patients. Have strict hygiene rules. Avoids overuse of antibiotics

Question 84

What is binge drinking?

Answer 84

drinking excessively over a short period of time

Question 85

What’s the 1st antibiotic discovered

Answer 85

penicillin

Question 86

what is photosynthesis?

Answer 86

process where plants make their own food by absorbing light energy and changing it to chemical energy