Topic B3-Antibiotics, Drug Discovery, Disease Flashcards

1
Q

What are microorganisms that cause disease called?

A

Pathogens

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2
Q

What 4 things could pathogens be?

A

Bacteria
Virus
Fungi
Protist

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3
Q

What do bacteria produce that damage our tissues and make us feel ill?

A

Toxins/poisons

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4
Q

Where do viruses reproduce which causes cell damage?

A

They reproduce inside cells

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5
Q

Which viral disease causes a fever and a red skin rash?

A

Measles

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6
Q

How is measles virus spread?

A

Inhalation of droplets from sneezes and coughs

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7
Q

What is HIV infection controlled by?

A

Antiretroviral drugs

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8
Q

What is late stage HIV infection where the body’s immune system becomes so badly damaged that it can no longer deal with other infections or cancers?

A

AIDS

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9
Q

Name a plant virus that causes a discolouration of the leaves as a pattern and affects the growth of the plant due to lack of photosynthesis…

A

TMV tobacco mosaic virus

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10
Q

What bacterial disease is spread by contaminated food?

A

Salmonella

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11
Q

Symptoms of salmonella food poisoning?

A

Fever
Abdominal cramps
Vomiting
Diarrhoea

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12
Q

Name an STD spread by a bacterium

A

Gonorrhoea

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13
Q

Give 2 symptoms of gonhorrhoea

A

Thick yellow/green discharge
Pain upon urinating

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14
Q

Name a plant FUNGAL disease

A

Rose back spot

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15
Q

Symptom of rose black spot…

A

Purple or black spots develop on leaves which turn yellow and drop

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16
Q

How is rose black sport spread?

A

Water 💦 and wind 💨

17
Q

How is rose black spot treated?

A

Fungicides and/or removing and destroying affected leaves

18
Q

Name a protist disease

A

Malaria

19
Q

Give a symptom of malaria…

A

Recurrent episodes of fever

20
Q

How can the spread of malaria be controlled?

A

Preventing vectors (mosquitos) from breeding and using mosquito nets to avoid being bitten

21
Q

Name a non-specific defence system of the human body…

A

Skin
Nose
Trachea/bronchi
Stomach

22
Q

In which 3 ways do white blood cells help to defend against pathogens?

A

Antibodies
Antitoxins
Phagocytosis

23
Q

What is a vaccination?

A

Introducing small quantities of dead/inactive pathogens to stimulate white blood cells to produce antibodies

24
Q

What to antibiotics do?

A

Kill bacteria

25
Q

Give an example of an antibiotic

A

Penicillin

26
Q

Can antibiotics kill viral pathogens?

A

No

27
Q

Do painkillers kill pathogens

A

no

28
Q

Why is it difficult to kill viruses?

A

May also damage the body’s tissue

29
Q

Where does the heart drug DIGITALIS originate from?

A

Foxglove

30
Q

What does the painkiller aspirin originate from?

A

Willow tree

31
Q

Who discovered penicillin

A

Alexander Fleming

32
Q

What is the 1st stage of drug testing called?

A

Pre-clinical testing

33
Q

What 3 things are new drugs extensively tested for?

A

Toxicity
Efficacy
Dose

34
Q

Where is pre-clinical testing done?

A

In a lab

35
Q

Who does clinical testing involve?

A

Healthy volunteers and patients

36
Q

What is a placebo?

A

Fake drug

37
Q

What is a double-blind trial?

A

Patient and doctors do not know who has been given the real drug