3.1

Question 1

Clinical trials

5

Answer 1

• human cells and computer models
• animals
• healthy volunteers
• patients with illness
• prescribed

Question 2

Penicillin?

Answer 2

Antibiotic

Question 3

Aspirin

Answer 3

Anti-inflammatory

Question 4

What cannot be killed by antibiotics?

Answer 4

Viruses

Question 5

How do resistant strains develop?

Answer 5

Spontaneous mutations can result in bacteria developing antibiotic resistance
•antibiotics kill the non resistant strains but the resistant strains survive and reproduce,increasing their population

Question 6

Painkiller examples (4)

Answer 6

Aspirin
Paracetamol
Antidepressants
Sleeping tablets

Question 7

Problems caused by over prescribing of antibiotics

Answer 7

Increased cost to NHS

•antibiotic resistance

Question 8

Recreational drugs that harm the body

3

Answer 8

Alcohol
Nicotine
Cocaine

Question 9

Why do people become dependent on recreational drugs?

And example

Answer 9

The drugs change the chemical processes in the body,and they suffer withdrawal symptoms without them.
•nicotine in tobacco

Question 10

Tobacco smoke

2

Answer 10

• Contains substances that cause diseases of the respiratory and circulatory systems
• contains carbon monoxide,which changes the oxygen-carrying capacity of the blood

Question 11

Alcohol

2

Answer 11

• Affects the nervous system by slowing down reactions

* long term damage to the liver and brain

Question 12

why are antibiotics no longer used to treat non-serious infections? (mild throats infections)

Answer 12

in order to slow down the rate of development of resistant strains

Question 13

example of medicine that helps symptoms but doesn’t provide cure

Answer 13

painkillers

Question 14

why use is discouraged

Answer 14

advertising restriction of sales to young people