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GCSE Science > B3 Infection And Response > Flashcards

B3 Infection And Response Flashcards

1
Q

What is a communicable disease?

A

A disease that is caused by a pathogen and can be passed on from one person to another

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2
Q

What is a non communicable disease?

A

A disease that cannot be passed on

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3
Q

What factors can affect your health?

A

Diet
Stress
Mental health
Lifestyle

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4
Q

What is the difference between bacteria and virus?

A

Viruses are much smaller that bacterial

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5
Q

How are pathogens spread?

A

By air
By direct contact
By water
Sexual intercourse
By animals

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6
Q

How do we stop the spread of disease?

A

Wash hands
Isolate
Vaccination
Wear a condom
Destroy the animal

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7
Q

What are the 3 examples of viral diseases?

A

Measles
HIV/ AIDS
TMV

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8
Q

What are the 3 examples of bacterial diseases?

A

Salmonella
Gonorrhoea
Crown gall

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9
Q

Name the disease caused by fungus

A

Rose black spot

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10
Q

Name the disease caused by protist

A

Malaria

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11
Q

How can you prevent the spread of malaria?

A

Net
Destroy the vector
Use insecticides

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12
Q

How does your body prevent microorganism entering your body?

A

Skin
Nose hair
Acid in stomach

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13
Q

How does your immune system defend against pathogens?

A

Engulf the pathogen
Produce antibodies
Produce antitoxins

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14
Q

What is a vaccine?

A

A dead or inactive part of the cell

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15
Q

What is herd immunity?

A

When a large proportion of a population is immune from the spread of a pathogen. The chances of it spreading are small

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16
Q

What is the job of painkillers?

A

These are taken to treat the symptoms associated with an illness. I.e to lower your body temperature

17
Q

What is the job of antibiotics?

A

These work by killing the bacteria that are harming your body

18
Q

What is the drug extracted from foxgloves trees?

A

Digitalis which help people with heart problems

19
Q

What is the drug extracted from willow trees?

A

Aspirin which can be used as pain relief

20
Q

What factors make up a good medicine?

A

Effective
Safe
Stable
Removed quickly from the body

21
Q

What happens at preclinical trials?

A

Takes place in a lab using computers, cells, tissues and live animals

22
Q

What happens at clinical trials?

A

Use with a small group of healthy volunteers
Use with a small group of unhealthy volunteers
Used with a large group of volunteers

23
Q

What is a placebo?

A

A tablet that does not contain any part of the drug

24
Q

What is a double blind trial?

A

When neither the doctor or the patients knows whether they are taking the drug or not

GCSE Science (21 decks)

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