Diseases

Question 1

How can you catch malaria

Answer 1

A single mosquito bite or a parasite
Dirty needles

Question 2

What causes malaria?

Answer 2

Protists

Question 3

Symptoms for malaria?

Answer 3

high temperature
sweats and chills
headaches
vomiting
muscle pain

Question 4

What causes HIV?

Answer 4

Virus

Question 5

How can you catch it?

Answer 5

Having sex without a condom.

Question 6

HIV symptoms.

Answer 6

flu like symptoms.

Question 7

Whats causes AIDS?

Answer 7

Virus

Question 8

How can you catch AIDS?

Answer 8

HIV is passed on through blood, semen, vaginal fluid, anal mucus and breast milk, if the person with HIV has a detectable viral load. It’s not passed on by spitting, sneezing or coughing.

Question 9

Symptoms for AIDS

Answer 9

Fever
Rash
Nausea
Vomiting

Question 10

What causes measles?

Answer 10

Virus.

Question 11

How can you catch measles?

Answer 11

If they have been vaccinated

Question 12

Symptoms of measles?

Answer 12

Cold like symptom
runny nose
sore red eyes

Question 13

What is Rose black spot caused by?

Answer 13

Fungus

Question 14

How do you prevent harm from Rose black spot?

Answer 14

Use fungicides
Chopping off leaves

Question 15

How does Rose black spot affect the organism?

Answer 15

They turn yellow
Purple or black spots

Question 16

How does Rose black spot affect the growth of the organsim?

Answer 16

Affects growth of the plant as photosynthesis is reduced.

Question 17

What is athletes foot caused by?

Answer 17

Fungus

Question 18

How do you prevent athletes foot?

Answer 18

Keep your feet clean and dry.
Dont share towels,socks and shoes.

Question 19

Athletes foot symptoms?

Answer 19

affected skin may be:
itchy
red
scaly
dry
cracked

Question 20

What is the symptoms for salmonella?

Answer 20

Fever
abdominal cramps
vomiting
diarrhoea

Question 21

How to prevent salmonella?

Answer 21

Prevent eating raw chicken wash before cooking, cook chicken throughly

Question 22

Name one way that antibiotics work to cure bacterial infections.

Answer 22

Antibiotics work by blocking vital processes in bacteria. They kill the bacteria or stop it from spreading.

Question 23

Describe how people become infected with food poisoning caused by salmonella.

Answer 23

Eating raw meat such as raw poultry and eggs.

Question 24

What type of disease is gonorrhoea and how is it spread?

Answer 24

It is a sexually transmitted disease.It is spread unprotected sexual contact with an infected people.

Question 25

How can gonorrhoea be treated and prevented?

Answer 25

It can be treated with anti-biotics and it can be prevented by using a condom or by reducing sexual partners.

Question 26

What are the similarities and differences between salmonella and gonorrhoea?

Answer 26

Both are bacterial diseases Salmonella is spread through eating raw food but gonorrhoea is spread by having sex without a condom or with the infected.

Question 27

what attack plants?

Answer 27

Viruses,bacteria,fungi and aphids.

Question 28

What are aphids?

Answer 28

Aphids are an insect plant pest.

Question 29

What happens if there is a lack of nitrate ions in the soil of a plant?

Answer 29

Plants need a good supply of nitrate ions from the soil to convert the sugars made in photosynthesis into proteins needed for growth in protein synthesis.If there is a lack of nitrate ions growth will be stunted and they will not produce a crop properly.

Question 30

What do magnesium ions do for a plant and what happens if there is a lack of them?

Answer 30

Plants take magnesium ions from the soil to make the chlorophyll needed for photosynthesis.If the level of magnesium ions in the soil is low the plant cannot make enough chlorophyll.The leaves become yellow and the growth slows down because the plant cannot photosynthesise properly.

Question 31

What is the yellowing of leaves due to the lack of magnesium ions called?

Answer 31

Chlorosis.

Question 32

Symptoms of disease in plants include:

Answer 32

stunted growth spots on leaves areas of decay or rotting growths maliformed stems and leaves discolouration presence of visible pests

Question 33

What are the physcial barriers from plants that reduce the invasion of pathogens?

Answer 33

1) Bark on trees amd a layer of dead cells on the outside of stems form a protective layer that is hard for pathogens to pentrate 2) Leaf fall-deciduous trees lose their leaves in autumn.Any pathogens that infect the leaves such as rose black spot fall of the tree when the leaves are lost. 3) The tough waxy cuticle on the surface of leaves acts as a barrier to the entry of pathogens.It is only at the stomato that pathogens actually have access to the cells within the leaf.

Question 35

Defence against herbivores.

Answer 35

Poison to deter herbivores Thorns to make it unpleasant or painful for large herbivores to eat them. Hairy stems and/or leaves deter insects and larger animals feeding on them or laying eggs on the leaves or stems Drooping or curling when touched- a rare but effective adaptation is for the leaves to collapse suddenly frightening herbivores. Mimicry-sometimes plants need to mimic other plants to show that they are unhealthy so herbivores stay off them.

Question 36

What are the two types of tumours?

Answer 36

Malignant and Benign.

Question 37

What is a tumour?

Answer 37

a lump of cells as a result of uncontrolled cell devision.

Question 38

What is the difference between a malignant and benign tumour?

Answer 38

Benign tumours do not include other parts of the body but can grow very large,very quickly.Malignant tumours can spread around the body and invade healthy tissues.

Question 39

What health effect do both tumours have on the body ?

Answer 39

Malignant tumours disrupts healthy tissues and is left untreated, can kill the person. Benign can cause pressure or damage to an organ such as the brain.

Question 40

Describe the use of chemotherapy as a treatment.

Answer 40

Chemotherapy is when chemicals are used to either stop the cancer cells dividing or to make them " self-destruct".

Question 41

Describe the use of radiotherapy and as a treatment.

Answer 41

Radiotherapy is when the cancer cells are destroyed by targeted closes of radiation

Question 41

List and desciribe the risks of both types of treatment.

Answer 41

Radiotherapycan stop mitois but can also damage healthy cells.Chemotherapy can make the cancer cells self destruct but it is not for every typeso there is only a possibility it can damage healthy cells aswell.